Dr. Irina Snigireva Profile

Dr. Irina Snigireva

Scientist at ESRF - The European Synchrotron

SPIE Involvement:

Author

Publications (71)

Proceedings Article | 21 September 2021 Presentation + Paper

X-ray refractive axicon lens for advanced synchrotron sources

D. Zverev, I. Snigireva, A. Snigirev

Proceedings Volume 11837, 1183702 (2021) https://doi.org/10.1117/12.2594507

KEYWORDS: Axicons, X-rays, X-ray optics, Beam shaping, Commercial off the shelf technology, Imaging systems, Synchrotrons, Scanning electron microscopy

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Proceedings Article | 21 September 2021 Paper

Study of the applicability of nano-polycrystalline diamond as a material for refractive x-ray lenses

I. Snigireva, T. Irifune, T. Shinmei, P. Medvedskaya, S. Shevyrtalov, G. Bourenkov, M. Polikarpov, S. Rashchenko, A. Snigirev, Ivan Lyatun

Proceedings Volume 11837, 1183703 (2021) https://doi.org/10.1117/12.2594675

KEYWORDS: X-rays, Diamond, Crystals, Scattering, Scanning electron microscopy, Raman scattering, Lenses, Laser scattering, Carbon, X-ray imaging

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Proceedings Article | 21 September 2021 Paper

Silicon planar refractive optics for coherent x-ray sources: metrology and manufacturing approaches

M. Sorokovikov, D. Zverev, V. Yunkin, S. Kuznetsov, I. Snigireva, A. Snigirev

Proceedings Volume 11837, 1183704 (2021) https://doi.org/10.1117/12.2594815

KEYWORDS: Lenses, Silicon, Scanning electron microscopy, Optics manufacturing, X-ray optics, X-rays, Plasma etching, Manufacturing, Etching, Metrology

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Proceedings Article | 21 September 2021 Presentation + Paper

X-ray diffraction imaging of diamond x-ray optics in the laboratory

Aleksandr Barannikov, Sergey Shevyrtalov, Maxim Polikarpov, Irina Snigireva, Anatoly Snigirev

Proceedings Volume 11837, 118370N (2021) https://doi.org/10.1117/12.2594722

KEYWORDS: X-rays, Diamond, Crystals, X-ray sources, X-ray diffraction, X-ray optics

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Proceedings Article | 8 September 2021 Presentation + Paper

High-resolution phase-sensitive x-ray imaging technique based on the bilens system in an advanced optical layout

M. Sorokovikov, D. Zverev, V. Yunkin, S. Kuznetsov, I. Snigireva, A. Snigirev

Proceedings Volume 11839, 118390I (2021) https://doi.org/10.1117/12.2595017

KEYWORDS: Interferometers, X-ray imaging, X-rays, Boron, Tungsten, X-ray optics, Spatial resolution, Phase shifts, Distortion, Interferometry

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Proceedings Article | 18 April 2021 Presentation + Paper

Laboratory complex for the tests of the X-ray optics and coherence-related techniques

Aleksandr Barannikov, Sergey Shevyrtalov, Dmitrii Zverev, Anton Narikovich, Aleksandr Sinitsyn, Igor Panormov, Irina Snigireva, Anatoly Snigirev

Proceedings Volume 11776, 117760D (2021) https://doi.org/10.1117/12.2582687

KEYWORDS: X-ray optics, X-rays, X-ray microscopy, X-ray diffraction, Synchrotrons, Optical testing, Cameras, Sensors, X-ray detectors, Crystals

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Proceedings Article | 18 April 2021 Paper

X-ray refractive glass microlenses produced by ion beam lithography

P. Medvedskaya, I. Lyatun, K. Golubenko, V. Yunkin, I. Snigireva, A. Snigirev

Proceedings Volume 11776, 117760I (2021) https://doi.org/10.1117/12.2589310

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Proceedings Article | 18 April 2021 Paper

X-ray interferometry technique for thin-films study using an x-ray microfocus laboratory source

M. Voevodina, S. Lyatun, D. Zverev, A. Barannikov, I. Lyatun, I. Snigireva, A. Snigirev

Proceedings Volume 11776, 1177609 (2021) https://doi.org/10.1117/12.2589495

KEYWORDS: X-rays, X-ray sources, Thin films, X-ray optics, Interferometry, Sensors, X-ray detectors, Synchrotrons, Multilayers, Temporal resolution

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Proceedings Article | 18 April 2021 Paper

Thin layer imaging approach by X-ray amplitude splitting interferometer based on compound refractive lens

D. Zverev, M. Voevodina, S. Lyatun, I. Snigireva, A. Snigirev

Proceedings Volume 11776, 117760A (2021) https://doi.org/10.1117/12.2589584

KEYWORDS: X-rays, Interferometers, X-ray imaging, Thin films, Reflectivity, Gold, Visible radiation, Synchrotrons, Spatial resolution, Reflectometry

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Proceedings Article | 27 August 2020 Poster + Paper

Ion beam lithography for coherent x-ray optics application

P. Medvedskaya, I. Lyatun, S. Shevyrtalov, M. Polikarpov, I. Snigireva, V. Yunkin, A. Snigirev

Proceedings Volume 11491, 1149111 (2020) https://doi.org/10.1117/12.2568427

KEYWORDS: Lenses, X-ray optics, Ion beam lithography, Diamond, X-rays, Laser ablation, Synchrotrons, Manufacturing, Radio optics, Scanning electron microscopy

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Proceedings Article | 21 August 2020 Presentation + Paper

X-ray interferometry technique using an x-ray microfocus laboratory source

M. Voevodina, S. Lyatun, A. Barannikov, I. Lyatun, I. Snigireva, A. Snigirev

Proceedings Volume 11492, 114920L (2020) https://doi.org/10.1117/12.2568499

KEYWORDS: X-rays, X-ray optics, X-ray sources, Reflectometry, Thin films, Sensors, Lenses, Interferometry, Silicon

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Proceedings Article | 21 August 2020 Paper

Peculiarities in the interference pattern obtained by x-ray bilens interferometer

D. A. Zverev, V. G. Kohn, V. A. Yunkin, S. M. Kuznetsov, I. I. Snigireva, A. A. Snigirev

Proceedings Volume 11493, 114930L (2020) https://doi.org/10.1117/12.2568687

KEYWORDS: Interferometers, X-rays, Lenses, Silicon, Computer simulations, Scanning electron microscopy, Absorption, Sensors, Etching

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Proceedings Article | 21 August 2020 Paper

Refractive optics based x-ray reflecto-interferometry

S. Lyatun, I. Lyatun, D. Zverev, O. Konovalov, I. Snigireva, A. Snigirev

Proceedings Volume 11491, 114910N (2020) https://doi.org/10.1117/12.2567988

KEYWORDS: X-rays, X-ray optics, Reflectivity, Silicon, Thin films, Sensors, Lenses, Spatial resolution, Refractive index

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Proceedings Article | 21 August 2020 Paper

Beam-shaping elements based on x-ray refractive optics: theory, modeling, and experiment

D. Zverev, I. Snigireva, A. Snigirev

Proceedings Volume 11493, 114930K (2020) https://doi.org/10.1117/12.2568395

KEYWORDS: Axicons, X-rays, Lenses, X-ray optics, Optical components, Microscopy, X-ray microscopy, Computer simulations, Objectives

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Proceedings Article | 29 May 2018 Presentation

Fabrication of 3D x-ray compound refractive lenses by two-photon polymerization lithography (Conference Presentation)

Natalia Kokareva, Alexander Petrov, Vladimir Bessonov, Ksenia Abrashitova, Kirill Safronov, Aleksandr Barannikov, Petr Ershov, Nataliya Klimova, Ivan Lyatun, Vyacheslav Yunkin, Maxim Polikarpov, Irina Snigireva, Andrey Fedyanin, Anatoly Snigirev

Proceedings Volume 10675, 106750E (2018) https://doi.org/10.1117/12.2307371

KEYWORDS: Lenses, Two photon polymerization, X-rays, Lithography, X-ray lithography, X-ray optics, Absorption, Beryllium, Visible radiation, Scanning electron microscopy

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X-ray microscopy is advantageous over conventional optical microscopy because of its high resolution and capability to study the inner structure of materials opaque to visible light. Furthermore, this method does not require metallization and vacuum and therefore it can be used to visualize fragile biological samples that cannot be studied by scanning electron microscopy. Focusing X-ray optics may be roughly divided into three groups based on the physical principle of focusing: reflection, diffraction and refraction. The reflection optics includes curved mirrors, multilayers and capillaries; the diffractive optics includes Fresnel zone plates. Refractive optics comprises X-ray compound refractive lenses (CRLs) that are widely used nowadays because of their compactness and ease of fabrication. Focusing performance of the CRL is determined by the refractive index, absorption, the inner structure of the CRL material and the geometry of the lens. The optimal shape for the lens is parabolic with a small radius of curvature, because the smaller radius of the parabola leads to shorter focal distance and therefore allows to achieve higher resolution. The common choice of the CRL material is beryllium. However the resolution of Be lenses is far below theoretically predicted limits because of the parasitic scattering introduced by the grains in the material. Moreover the existing manufacturing technologies do not allow to achieve radius of curvature less than 50 μm. Polymer materials are also popular for the CRL microfabrication because of their amorphous nature, ease of structuring and low price. Among the advanced lithographic techniques the two-photon polymerization lithography (2PP) holds a special place. It is based on polymer solidification by means of two-photon absorption. Nonlinear character of two-photon absorption leads to the transparency of the out-of focus material, while presence of polymerization threshold reduces resolution far below diffraction limit. Therefore 2PP can be used for fabrication 3D structures of almost arbitrary shape including overhanging and self-intersecting structures. In this work we introduce the 3D X-ray CRL fabricated by 2PP from the commercially available photoresist ORMOCOMP. Hundred double concave individual lenses formed a CRL with the 60 μm distance between adjacent lenses. Radius of curvature of a single parabolic surface was 3 μm that is comparable to radius of 2D silicon nano-lens made by conventional lithography and much less than achievable radius of 3D Be lens. Physical aperture was 28 μm. The optimal processing parameters (power, incident on the sample, and velocity of the laser beam waist movement) were determined. The fabricated CRL was studied by scanning electron microscopy. It was shown that surface of the lens is smooth and the geometrical parameters do not deviate significantly from that of the model. Focusing performance of lenses was studied by the knife-edge technique. It was obtained that the focal distance is not larger than 2 cm at the energy of 9.25 keV. The radiation resistance of the CRL was tested at the synchrotron DESY: PETRA-III. The CRL was exposed at the non-focused X-ray radiation with the standard power and the energy of 12 keV for more than 10 hours without visible degradation.

Proceedings Article | 18 October 2017 Presentation

Coherent high-energy x-ray microscopy for mesoscopic materials (Conference Presentation)

Irina Snigireva, Anatoly Snigirev

Proceedings Volume 10389, 1038904 (2017) https://doi.org/10.1117/12.2273727

KEYWORDS: Microscopes, Objectives, Diffraction, Image resolution, X-ray microscopy, Lenses, X-rays, Sensors, Nanoimaging, CCD cameras

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Proceedings Article | 31 May 2017 Paper

Diffraction losses in monocrystalline x-ray refractive lenses

M. Polikarpov, H. Emerich, N. Klimova, I. Snigireva, A. Snigirev

Proceedings Volume 10235, 102350H (2017) https://doi.org/10.1117/12.2266832

KEYWORDS: X-rays, Lenses, Diamond, X-ray optics, X-ray diffraction, Spectroscopy, Crystals, Single crystal X-ray diffraction, Diffraction, X-ray microscopy, X-ray sources

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Proceedings Article | 16 September 2016 Paper

Laboratory and synchrotron tests of two-dimensional parabolic x-ray compound refractive lens made of single-crystal diamond

M. Polikarpov, A. Barannikov, D. Zverev, S. Terentiev, S. Polyakov, S. Zholudev, S. Martyushov, V. Denisov, N. Kornilov, I. Snigireva, V. Blank, A. Snigirev

Proceedings Volume 9964, 99640J (2016) https://doi.org/10.1117/12.2238798

KEYWORDS: X-rays, Diamond, X-ray optics, X-ray sources, Optical components, Synchrotrons, X-ray imaging, Neodymium, Thermography, Silicon

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Proceedings Article | 15 September 2016 Presentation + Paper

Diamond x-ray refractive lenses produced by femto-second laser ablation

M. Polikarpov, T. Kononenko, V. Ralchenko, E. Ashkinazi, V. Konov, P. Ershov, S. Kuznetsov, V. Yunkin, I. Snigireva, V. Polikarpov, A. Snigirev

Proceedings Volume 9963, 99630Q (2016) https://doi.org/10.1117/12.2238029

KEYWORDS: Diamond, Lenses, X-rays, X-ray optics, Laser ablation, Scanning electron microscopy, Chemical vapor deposition, Manufacturing, Radiography, X-ray microscopy

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Proceedings Article | 5 September 2014 Paper

X-ray multilens interferometer based on Si refractive lenses

A. Snigirev, I. Snigireva, M. Lyubomirskiy, V. Kohn, V. Yunkin, S. Kuznetsov

Proceedings Volume 9207, 920703 (2014) https://doi.org/10.1117/12.2061616

KEYWORDS: Interferometers, X-rays, Lenses, Silicon, Fringe analysis, Diffraction, Visibility, X-ray technology, Computer simulations, Spherical lenses

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Proceedings Article | 5 September 2014 Paper

X-ray harmonics suppression by compound refractive lenses

Maxim Polikarpov, Irina Snigireva, Anatoly Snigirev

Proceedings Volume 9207, 920711 (2014) https://doi.org/10.1117/12.2060534

KEYWORDS: X-rays, Lenses, Crystals, Monochromators, Mirrors, X-ray microscopy, Synchrotron radiation, Silicon, X-ray optics, Synchrotrons

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Proceedings Article | 26 September 2013 Paper

Recent advances in use of atomic layer deposition and focused ion beams for fabrication of Fresnel zone plates for hard x-rays

Kahraman Keskinbora, Anna-Lena Robisch, Marcel Mayer, Corinne Grévent, Adriana Szeghalmi, Mato Knez, Markus Weigand, Irina Snigireva, Anatoly Snigirev, Tim Salditt, Gisela Schütz

Proceedings Volume 8851, 885119 (2013) https://doi.org/10.1117/12.2027251

KEYWORDS: Hard x-rays, Atomic layer deposition, Ion beams, Zone plates, Electron beam lithography, X-rays, X-ray microscopy, Fabrication, X-ray optics, Microscopy

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Proceedings Article | 3 May 2013 Paper

X-ray refractive optics as a Fourier transformer for high resolution diffraction

P. Ershov, S. Kuznetsov, I. Snigireva, V. Yunkin, A. Goikhman, A. Snigirev

Proceedings Volume 8777, 877716 (2013) https://doi.org/10.1117/12.2021476

KEYWORDS: Silicon, Crystals, Diffraction, X-ray optics, X-rays, Fourier transforms, X-ray diffraction, Transform theory, Binary data, Lenses

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Proceedings Article | 23 September 2011 Paper

Nano and micro structures image based on asymmetric Bragg diffraction

A. Kuyumchyan, V. Kohn, D. Kuyumchyan, A. Snigirev, I. Snigireva, M. Grigorev, E. Shulakov

Proceedings Volume 8102, 810216 (2011) https://doi.org/10.1117/12.892344

KEYWORDS: Crystals, X-rays, X-ray imaging, Silicon, Diffraction, Beryllium, Laser crystals, Image acquisition, Imaging systems, Synchrotron radiation

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Proceedings Article | 9 September 2009 Paper

Analysis of a spatial structure of a focused x-ray beam diffracted from crystals

A. Kazimirov, V. Kohn, A. Snigirev, I. Snigireva

Proceedings Volume 7448, 74480P (2009) https://doi.org/10.1117/12.826082

KEYWORDS: Crystals, Laser crystals, Diffraction, Reflection, X-rays, Solids, Silicon, Sensors, X-ray diffraction, Scattering

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Proceedings Article | 2 September 2009 Paper

Problem of x-ray synchrotron beam collimation by zone plate

A. Kuyumchyan, V. Kohn, A. Snigirev, I. Snigireva, M. Grigorev, A. Kouznetsov

Proceedings Volume 7395, 73952C (2009) https://doi.org/10.1117/12.831083

KEYWORDS: Zone plates, X-rays, Synchrotron radiation, Synchrotrons, Silicon, Collimation, Crystals, Computer simulations, Convolution, Paraxial approximations

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Proceedings Article | 5 October 2007 Paper

Micro-optics test bench at the ESRF

A. Snigirev, R. Hustache, P. Duboc, J.-Y. Massonnat, L. Claustre, P. Van Vaerenbergh, I. Snigireva, M. Grigoriev, V. Yunkin

Proceedings Volume 6705, 670511 (2007) https://doi.org/10.1117/12.732450

KEYWORDS: Micro optics, X-ray optics, Optical components, Lenses, X-rays, Optics manufacturing, Reflectivity, Sensors, Diagnostics, CCD cameras

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Proceedings Article | 2 October 2007 Paper

Nanopositioning of the silicon planar lenses used for 2D high energy x-ray nanofocusing

P. Van Vaerenbergh, A. Snigirev, M. Nicola, I. Snigireva, M. Grigoriev, V. Yunkin, G. Vaughan, L. Claustre, H-P. Van Der Kleij, J-Y. Massonnat

Proceedings Volume 6705, 670508 (2007) https://doi.org/10.1117/12.737324

KEYWORDS: Lenses, Silicon, X-rays, Metrology, Interferometers, Manufacturing, Optical alignment, Micro optics, Lens design, CCD cameras

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Proceedings Article | 20 September 2007 Paper

Hard x-ray focusing by stacked Fresnel zone plates

Irina Snigireva, Anatoly Snigirev, Viktor Kohn, Vyacheslav Yunkin, Maxim Grigoriev, Serguei Kuznetsov, Gavin Vaughan, Marco Di Michiel

Proceedings Volume 6705, 67050G (2007) https://doi.org/10.1117/12.732404

KEYWORDS: Zone plates, X-rays, Silicon, Phase shifts, Hard x-rays, CCD cameras, Solids, Microfabrication, Optical alignment, Epoxies

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Proceedings Article | 20 September 2007 Paper

Silicon planar lenses for high-energy x-ray nanofocusing

A. Snigirev, I. Snigireva, M. Grigoriev, V. Yunkin, M. Di Michiel, S. Kuznetsov, G. Vaughan

Proceedings Volume 6705, 670506 (2007) https://doi.org/10.1117/12.733609

KEYWORDS: Lenses, Silicon, X-rays, Etching, Manufacturing, Distance measurement, Lens design, Photomasks, Optics manufacturing, Scanning electron microscopy

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Proceedings Article | 20 September 2007 Paper

Development of refractive x-ray focusing optics at Diamond Light Source

L. Alianelli, K. Sawhney, I. Loader, D. Jenkins, R. Stevens, A. Snigirev, I. Snigireva

Proceedings Volume 6705, 670507 (2007) https://doi.org/10.1117/12.737350

KEYWORDS: Computer generated holography, X-rays, Diamond, X-ray optics, Silicon, Optical fabrication, Mirrors, Electron beam lithography, Cameras, Light sources

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Proceedings Article | 7 September 2006 Paper

Full-field and scanning microtomography based on parabolic refractive x-ray lenses

C. Schroer, M. Kuhlmann, T. Günzler, B. Benner, O. Kurapova, J. Patommel, B. Lengeler, S. Roth, R. Gehrke, A. Snigirev, I. Snigireva, N. Stribeck, A. Almendarez-Camarillo, F. Beckmann

Proceedings Volume 6318, 63181H (2006) https://doi.org/10.1117/12.680989

KEYWORDS: X-rays, Tomography, Hard x-rays, Scattering, Lenses, Microscopy, X-ray optics, X-ray microscopy, X-ray imaging, Spatial resolution

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Proceedings Article | 10 November 2004 Paper

Focusing hard x-ray FEL beams with parabolic refractive lenses

Christian Schroer, Boris Benner, Marion Kuhlmann, Olga Kurapova, Bruno Lengeler, Federico Zontone, Anatoly Snigirev, Irina Snigireva, Horst Schulte-Schrepping

Proceedings Volume 5534, (2004) https://doi.org/10.1117/12.559964

KEYWORDS: Lenses, X-rays, Beryllium, Hard x-rays, Diffraction, Free electron lasers, X-ray optics, Molecules, Signal attenuation, X-ray imaging

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Proceedings Article | 4 November 2004 Paper

Nanofocusing parabolic refractive x-ray lenses

Christian Schroer, Marion Kuhlmann, Olga Kurapova, U. T. Hunger, Til Florian Gunzler, Sebastian Feste, Bruno Lengeler, Stefan Ziegler, Michael Drakopoulos, Manfred Burghammer, Christian Riekel, Anatoly Snigirev, Irina Snigireva

Proceedings Volume 5539, (2004) https://doi.org/10.1117/12.559931

KEYWORDS: Lenses, X-rays, Hard x-rays, Synchrotron radiation, Silicon, Luminescence, Diffraction, X-ray optics, Diamond, Gold

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Proceedings Article | 4 November 2004 Paper

Hard x-ray focusing with extremely long compound refractive lens

Irina Snigireva, Victor Kohn, Anatoly Snigirev

Proceedings Volume 5539, (2004) https://doi.org/10.1117/12.564269

KEYWORDS: Chemical elements, X-rays, Absorption, Aluminum, Distance measurement, Wave propagation, Diffraction, Sensors, Hard x-rays, Design for manufacturability

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Proceedings Article | 4 November 2004 Open Access

Beryllium parabolic refractive x-ray lenses

Bruno Lengeler, Christian Schroer, Marion Kuhlmann, Boris Benner, Til Florian Gunzler, Olga Kurapova, Federico Zontone, Anatoly Snigirev, Irina Snigireva

Proceedings Volume 5539, (2004) https://doi.org/10.1117/12.559743

KEYWORDS: Lenses, X-rays, Beryllium, X-ray imaging, Aluminum, Image resolution, Nickel, Signal attenuation, Hard x-rays, Absorption

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Proceedings Article | 4 November 2004 Paper

Focusing of synchrotron radiation by compound refractive lenses made from glassy carbon

Alexander Artemiev, Anatoly Snigirev, Victor Kohn, Irina Snigireva, Nikolay Artemiev, Maxim Grigoriev, Serguei Peredkov, L. Glikin, M. Levtonov, V. Kvardakov, A. Zabelin, A. Maevsky

Proceedings Volume 5539, (2004) https://doi.org/10.1117/12.563254

KEYWORDS: Lenses, Carbon, Synchrotron radiation, X-rays, Cameras, Chemical elements, Manufacturing, X-ray optics, Phase contrast, Scanning electron microscopy

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Proceedings Article | 4 November 2004 Paper

X-ray optical objective based on Al and Be compound refractive lenses

Serguei Kuznetsov, Irina Snigireva, Anatoly Snigirev, Christian Schroer, Bruno Lengeler

Proceedings Volume 5539, (2004) https://doi.org/10.1117/12.563248

KEYWORDS: Lenses, Beryllium, Aluminum, Objectives, X-rays, Composites, X-ray optics, Synchrotrons, Hard x-rays, Synchrotron radiation

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Proceedings Article | 4 November 2004 Paper

Submicron focusing of high-energy x-rays with Ni refractive lenses

Anatoly Snigirev, Irina Snigireva, Marco Di Michiel, Veijo Honkimaki, Maxim Grigoriev, Vladimir Nazmov, Elena Reznikova, Jurgen Mohr, Volker Saile

Proceedings Volume 5539, (2004) https://doi.org/10.1117/12.564545

KEYWORDS: Lenses, Nickel, X-rays, X-ray lithography, Computer generated holography, Photomasks, Lens design, Gold, Electroplating, Polymethylmethacrylate

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Proceedings Article | 4 November 2004 Paper

Thermo-mechanical analysis and design optimization of front-end compound refractive lens

Lin Zhang, Anatoly Snigirev, Irina Snigireva, Graham Naylor, Anders Madsen, Federico Zontone, Marco Di Michiel, Pascal Elleaume

Proceedings Volume 5539, (2004) https://doi.org/10.1117/12.568105

KEYWORDS: Beryllium, X-rays, Finite element methods, Copper, Absorption, Scanning electron microscopy, Phase contrast, Temperature metrology, X-ray optics, Resistance

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Proceedings Article | 4 November 2004 Paper

Planar parabolic refractive lenses for hard x-rays: technological aspects of fabrication

Vyacheslav Yunkin, Maxim Grigoriev, Serguei Kuznetsov, Anatoly Snigirev, Irina Snigireva

Proceedings Volume 5539, (2004) https://doi.org/10.1117/12.563253

KEYWORDS: Lenses, Silicon, Diamond, Etching, Lens design, Nickel, X-rays, Semiconducting wafers, Hard x-rays, Polymers

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Proceedings Article | 4 November 2004 Paper

Mechanical bonding of two identical silicon planar refractive lenses

Vyacheslav Yunkin, Maxim Grigoriev, Serguei Kuznetsov, Anatoly Snigirev, Irina Snigireva

Proceedings Volume 5539, (2004) https://doi.org/10.1117/12.564872

KEYWORDS: Lenses, Silicon, X-rays, Wafer bonding, Semiconducting wafers, Synchrotron radiation, Distance measurement, Plasma etching, Optical alignment, Cameras

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Proceedings Article | 4 November 2004 Paper

Near-diffraction limited coherent x-ray focusing using planar refractive lenses made of epoxy SU-8 resist

Irina Snigireva, Anatoly Snigirev, Michael Drakopoulos, Victor Kohn, Vladimir Nazmov, Elena Reznikova, Jurgen Mohr, Volker Saile

Proceedings Volume 5539, (2004) https://doi.org/10.1117/12.561082

KEYWORDS: Lenses, X-rays, CCD cameras, X-ray imaging, Epoxies, Lithography, Manufacturing, Diffraction, Photomasks, X-ray lithography

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Proceedings Article | 4 November 2004 Paper

A giant linear Fresnel zone plate as a hard x-ray condenser

Angel Mazuelas, Anatoly Snigirev, Irina Snigireva, Christian David, Peter Boesecke, Hamid Djazouli, Till Metzger

Proceedings Volume 5539, (2004) https://doi.org/10.1117/12.561337

KEYWORDS: Hard x-rays, Zone plates, Silicon, Diffraction, X-rays, Electron beam lithography, Wet etching, Laser scattering, Scattering, X-ray optics

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Proceedings Article | 26 October 2004 Paper

Nanotomography using parabolic refractive x-ray lenses

Christian Schroer, Boris Benner, Til Florian Gunzler, Marion Kuhlmann, Jens Patommel, Bruno Lengeler, Andrea Somogyi, Timm Weitkamp, Christoph Rau, Anatoly Snigirev, Irina Snigireva

Proceedings Volume 5535, (2004) https://doi.org/10.1117/12.559643

KEYWORDS: X-rays, Lenses, Microscopes, Beryllium, Hard x-rays, Spatial resolution, Tomography, X-ray microscopy, Sensors, X-ray imaging

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Proceedings Article | 26 October 2004 Paper

Fluorescence microtomography using nanofocusing refractive x-ray lenses

Christian Schroer, Til Florian Gunzler, Marion Kuhlmann, Olga Kurapova, Sebastian Feste, Mario Schweitzer, Bruno Lengeler, Walter Schroder, Michael Drakopoulos, Andrea Somogyi, Alexandre Simionovici, Anatoly Snigirev, Irina Snigireva

Proceedings Volume 5535, (2004) https://doi.org/10.1117/12.559679

KEYWORDS: Luminescence, Lenses, Tomography, Particles, Hard x-rays, X-rays, Signal attenuation, X-ray fluorescence spectroscopy, Synchrotron radiation, Microscopy

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Proceedings Article | 23 December 2003 Paper

Focusing properties of silicon refractive lenses: comparison of experimental results with the computer simulation

Irina Snigireva, Vecheslav Yunkin, Sergey Kuznetsov, Maxim Grigoriev, Marina Chukalina, Leonid Shabel'nikov, Anatoly Snigirev, Martin Hoffmann, Edgar Voges

Proceedings Volume 5195, (2003) https://doi.org/10.1117/12.507070

KEYWORDS: Lenses, Silicon, Etching, X-rays, Lens design, Computer simulations, Photomasks, Crystals, Manufacturing, Numerical simulations

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Proceedings Article | 23 December 2003 Paper

Focusing properties of x-ray polymer refractive lenses from SU-8 resist layer

Anatoly Snigirev, Irina Snigireva, Michael Drakopoulos, Vladimir Nazmov, Elena Reznikova, Sergey Kuznetsov, Maxim Grigoriev, Jurgen Mohr, Volker Saile

Proceedings Volume 5195, (2003) https://doi.org/10.1117/12.507111

KEYWORDS: Lenses, X-rays, X-ray imaging, Lens design, X-ray lithography, Manufacturing, Silicon, Optics manufacturing, Collimators, Synchrotron radiation

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Proceedings Article | 21 November 2002 Paper

X-ray refractive collimator based on planar silicon lens

Irina Snigireva, Michail Grigoriev, Leonid Shabel'nikov, Vecheslav Yunkin, Anatoly Snigirev, Serguei Kuznetsov, Marco Di Michiel, Martin Hoffmann, Edgar Voges

Proceedings Volume 4783, (2002) https://doi.org/10.1117/12.451015

KEYWORDS: Collimators, X-rays, Silicon, Collimation, X-ray imaging, Optical testing, Error analysis, Diffraction, X-ray optics, Etching

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Proceedings Article | 21 November 2002 Paper

Deformation Bragg-Fresnel lens with SiO² surface structure

Vitaly Aristov, Michael Drakopoulos, Serguei Kuznetsov, Anatoly Snigirev, Irina Snigireva, Vecheslav Yunkin

Proceedings Volume 4783, (2002) https://doi.org/10.1117/12.451016

KEYWORDS: Crystals, Oxides, Diffraction, Silicon, X-rays, Etching, Silica, Silicon films, X-ray diffraction, Hard x-rays

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Proceedings Article | 21 November 2002 Paper

Beryllium parabolic refractive x-ray lenses

Christian Schroer, Marion Kuhlmann, Bruno Lengeler, Til Gunzler, O. Kurapova, Boris Benner, Christoph Rau, Alexandre Simionovici, Anatoly Snigirev, Irina Snigireva

Proceedings Volume 4783, (2002) https://doi.org/10.1117/12.451013

KEYWORDS: Lenses, Beryllium, X-rays, Aluminum, Image resolution, Microscopy, Hard x-rays, X-ray imaging, Photomicroscopy, X-ray optics

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Proceedings Article | 21 November 2002 Paper

High-efficiency low-absorption Fresnel compound zone plates for hard x-ray focusing

Armen Kuyumchyan, A. Isoyan, E. Shulakov, Vitaly Aristov, M Kondratenkov, Anatoly Snigirev, Irina Snigireva, Alexei Souvorov, Kenji Tamasaku, Makina Yabashi, Tetsuya Ishikawa, K Trouni

Proceedings Volume 4783, (2002) https://doi.org/10.1117/12.450480

KEYWORDS: Zone plates, Diffraction, Silicon, Synchrotron radiation, Ions, X-rays, Hard x-rays, Crystals, Electron beam lithography, Plasma etching

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Proceedings Article | 21 November 2002 Paper

Diamond refractive lens for hard x-ray focusing

Anatoly Snigirev, Vecheslav Yunkin, Irina Snigireva, Marco Di Michiel, Michael Drakopoulos, Sergey Kouznetsov, Leonid Shabel'nikov, Michail Grigoriev, Victor Ralchenko, I. Sychov, Martin Hoffmann, Edgar Voges

Proceedings Volume 4783, (2002) https://doi.org/10.1117/12.451011

KEYWORDS: Diamond, Lenses, Hard x-rays, Microfabrication, X-rays, Optics manufacturing, X-ray technology, Optical properties, X-ray optics, Manufacturing

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Proceedings Article | 21 November 2002 Paper

Refractive x-ray optics: step from focusing to interferometric devices

Leonid Shabel'nikov, Igor Schelokov, Anatoly Snigirev, Irina Snigireva, Serguei Kuznetsov

Proceedings Volume 4783, (2002) https://doi.org/10.1117/12.447862

KEYWORDS: X-rays, X-ray optics, Lenses, Absorption, Synchrotrons, Diamond, Refraction, Interferometry, Computer simulations, Diffraction

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Proceedings Article | 21 November 2002 Paper

X-ray lens with kinoform refractive profile created by x-ray lithography

Leonid Shabel'nikov, Vladimir Nazmov, Franz Pantenburg, Juergen Mohr, Volker Saile, Vecheslav Yunkin, Sergey Kouznetsov, Valery Pindyurin, Irina Snigireva, Anatoly Snigirev

Proceedings Volume 4783, (2002) https://doi.org/10.1117/12.455688

KEYWORDS: Computer generated holography, X-ray lithography, X-rays, Photomasks, Image segmentation, Polymethylmethacrylate, Distortion, Lens design, Computer simulations, Image processing

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Proceedings Article | 7 January 2002 Paper

High-resolution element mapping inside biological samples using fluorescence microtomography

Christian Schroer, Boris Benner, Til Guenzler, Marion Kuhlmann, Bruno Lengeler, Walter Schroeder, Arnd Kuhn, Alexandre Simionovici, Anatoly Snigirev, Irina Snigireva

Proceedings Volume 4503, (2002) https://doi.org/10.1117/12.452850

KEYWORDS: Signal attenuation, Luminescence, Chemical elements, Potassium, Tomography, Absorption, Sensors, X-ray fluorescence spectroscopy, Rubidium, Radon transform

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Proceedings Article | 7 January 2002 Paper

Magnified hard x-ray microtomography: toward tomography with submicron resolution

Christian Schroer, Boris Benner, Til Guenzler, Marion Kuhlmann, Bruno Lengeler, Christoph Rau, Timm Weitkamp, Anatoly Snigirev, Irina Snigireva

Proceedings Volume 4503, (2002) https://doi.org/10.1117/12.452858

KEYWORDS: Tomography, Microscopes, X-rays, Hard x-rays, Lenses, Photomicroscopy, Absorption, X-ray imaging, Sensors, Phase contrast

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Proceedings Article | 13 December 2001 Paper

Refractive and diffractive x-ray optical elements

Irina Snigireva, Anatoly Snigirev, Serguei Kuznetsov, Christoph Rau, Timm Weitkamp, Leonid Shabelnikov, Michail Grigoriev, Vecheslav Yunkin, Martin Hoffmann, Edgar Voges

Proceedings Volume 4499, (2001) https://doi.org/10.1117/12.450223

KEYWORDS: Computer generated holography, X-rays, Silicon, Absorption, Lens design, Chlorine, Manufacturing, Etching, Synchrotron radiation, X-ray imaging

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Proceedings Article | 13 December 2001 Paper

Microbeam production using compound refractive lenses: beam characterization and applications

Christian Schroer, Bruno Lengeler, Boris Benner, Til Guenzler, Marion Kuhlmann, Alexandre Simionovici, Sylvain Bohic, Michael Drakopoulos, Anatoly Snigirev, Irina Snigireva, Walter Schroeder

Proceedings Volume 4499, (2001) https://doi.org/10.1117/12.450222

KEYWORDS: Luminescence, Lenses, X-rays, Aluminum, Chemical elements, X-ray optics, Mirrors, Iron, Optical filters, Potassium

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Proceedings Article | 14 November 2001 Paper

Planar parabolic lenses for focusing high-energy x-rays

Michail Grigoriev, Leonid Shabelnikov, Vecheslav Yunkin, Anatoly Snigirev, Irina Snigireva, Marco Di Michiel, Serguei Kuznetsov, Martin Hoffmann, Edgar Voges

Proceedings Volume 4501, (2001) https://doi.org/10.1117/12.448494

KEYWORDS: Lenses, X-rays, Silicon, Collimators, Collimation, X-ray imaging, Crystals, Etching, Cameras, Microelectronics

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Proceedings Article | 25 January 2001 Paper

Compound refractive lenses: high-quality imaging optics for the X-FEL

Christian Schroer, Johannes Tuemmler, Bruno Lengeler, Michael Drakopoulos, Anatoly Snigirev, Irina Snigireva

Proceedings Volume 4143, (2001) https://doi.org/10.1117/12.413680

KEYWORDS: Lenses, Aluminum, Beryllium, X-ray optics, Free electron lasers, Diffraction, X-rays, Nickel, Hard x-rays, Visible radiation

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Proceedings Article | 5 January 2001 Paper

Silicon planar parabolic lenses

Vitaly Aristov, Michail Grigoriev, Serguei Kuznetsov, Leonid Shabelnikov, Vecheslav Yunkin, Christoph Rau, Anatoly Snigirev, Irina Snigireva, Timm Weitkamp, Martin Hoffmann, Edgar Voges

Proceedings Volume 4145, (2001) https://doi.org/10.1117/12.411648

KEYWORDS: Lenses, Silicon, Absorption, X-rays, Diamond, Microfabrication, Synchrotron radiation, Etching, Hard x-rays, X-ray optics

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Proceedings Article | 5 January 2001 Paper

Parabolic compound refractive lenses for hard x rays

Christian Schroer, Bruno Lengeler, Boris Benner, Marion Kuhlmann, Til Guenzler, Johannes Tuemmler, Christoph Rau, Timm Weitkamp, Anatoly Snigirev, Irina Snigireva

Proceedings Volume 4145, (2001) https://doi.org/10.1117/12.411647

KEYWORDS: Lenses, Aluminum, X-rays, Hard x-rays, Beryllium, Microscopy, Microscopes, Absorption, Synchrotrons, Tomography

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Proceedings Article | 18 December 2000 Paper

Fluorescence microtomography: external mapping of elements inside biological samples

Christian Schroer, Johannes Tuemmler, Til Guenzler, Bruno Lengeler, Walter Schroeder, Arnd Kuhn, Alexandre Simionovici, Anatoly Snigirev, Irina Snigireva

Proceedings Volume 4142, (2000) https://doi.org/10.1117/12.410573

KEYWORDS: Luminescence, Chemical elements, Absorption, Sensors, Potassium, Lenses, Tomography, X-ray fluorescence spectroscopy, Hard x-rays, Signal detection

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Proceedings Article | 22 September 1999 Paper

X-ray fluorescence microtomography: experiment and reconstruction

Alexandre Simionovici, Marina Chukalina, Michael Drakopoulos, Irina Snigireva, Anatoly Snigirev, Christian Schroer, Bruno Lengeler, Koen Janssens, Freddy Adams

Proceedings Volume 3772, (1999) https://doi.org/10.1117/12.363733

KEYWORDS: Luminescence, X-ray fluorescence spectroscopy, Reconstruction algorithms, Tomography, Sensors, X-rays, Absorption, Chemical elements, Capillaries, Image resolution

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Proceedings Article | 28 May 1999 Paper

Hard x-ray quantitative noninterferometric phase-contrast imaging

Timur Gureyev, Carsten Raven, Anatoly Snigirev, Irina Snigireva, Stephen Wilkins

Proceedings Volume 3659, (1999) https://doi.org/10.1117/12.349510

KEYWORDS: X-rays, X-ray imaging, Optical spheres, Phase retrieval, Hard x-rays, Tomography, Spatial resolution, X-ray microscopy, Optical components, Synchrotron radiation

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Proceedings Article | 11 December 1997 Paper

New fixed-exit double-crystal monochromator with one cooled crystal

Alexei Souvorov, Nikolai Abrosimov, Michael Drakopoulos, Alexei Erko, Wolfgang Gudat, Andreas Freund, S. Rassolenko, W. Schroeder, Irina Snigireva, Anatoly Snigirev

Proceedings Volume 3151, (1997) https://doi.org/10.1117/12.294493

KEYWORDS: Crystals, Silicon, Monochromators, Laser crystals, Temperature metrology, Germanium, Single crystal X-ray diffraction, Crystallography, Sensors, Synchrotrons

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Proceedings Article | 11 December 1997 Paper

Refractive lenses for high-energy x-ray focusing

Anatoly Snigirev, B. Filseth, Pascal Elleaume, Th. Klocke, Victor Kohn, Bruno Lengeler, Irina Snigireva, Alexei Souvorov, Johannes Tuemmler

Proceedings Volume 3151, (1997) https://doi.org/10.1117/12.294496

KEYWORDS: Lenses, X-rays, Beryllium, Absorption, Refraction, Diagnostics, Aluminum, Boron, Monochromators, Hard x-rays

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Proceedings Article | 24 October 1997 Paper

X-Ray tomography with micrometer spatial resolution

Carsten Raven, Anatoly Snigirev, Andreas Koch, Irina Snigireva, Victor Kohn

Proceedings Volume 3149, (1997) https://doi.org/10.1117/12.292719

KEYWORDS: X-rays, Spatial resolution, Tomography, Sensors, X-ray detectors, Absorption, Modulation transfer functions, X-ray imaging, Image resolution, Scintillators

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Proceedings Article | 11 July 1997 Paper

Mirror surface characterization by topography with coherent x rays

Alexei Souvorov, Irina Snigireva, Anatoly Snigirev

Proceedings Volume 3113, (1997) https://doi.org/10.1117/12.278879

KEYWORDS: Mirrors, X-rays, Optical components, Surface roughness, Surface finishing, Fourier transforms, Sensors, Synchrotron radiation, Coherence imaging, X-ray imaging

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Proceedings Article | 19 July 1996 Paper

X-ray interferometry technique for mirror and multilayer characterization

Igor Schelokov, Olivier Hignette, Carsten Raven, Anatoly Snigirev, Irina Snigireva, Alexey Suvorov

Proceedings Volume 2805, (1996) https://doi.org/10.1117/12.245104

KEYWORDS: Mirrors, X-rays, Coherence (optics), Optical components, Particles, Holography, Modulation, Interferometry, Multilayers, Holograms

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