Dr. Radu Malureanu Profile

Dr. Radu Malureanu

Seniro Researcher at Technical Univ of Denmark

SPIE Involvement:

Author

Publications (23)

SPIE Journal Paper | 9 December 2023 Open Access

Open Access

Giant photoinduced reflectivity modulation of nonlocal resonances in silicon metasurfaces

Andrea Tognazzi, Paolo Franceschini, Olga Sergaeva, Luca Carletti, Ivano Alessandri, Giovanni Finco, Osamu Takayama, Radu Malureanu, Andrei Lavrinenko, Alfonso Cino, Domenico de Ceglia, Costantino De Angelis

AP, Vol. 5, Issue 06, 066006, (December 2023) https://doi.org/10.1117/12.10.1117/1.AP.5.6.066006

KEYWORDS: Silicon, Reflectivity, Modulation, Picosecond phenomena, Ultrafast phenomena, Solids, Photonics, Optical properties, Fluorescence correlation spectroscopy, Reflection

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Proceedings Article | 18 April 2021 Presentation

Presentation

Quantitative single-shot phase imaging with a dielectric metasurface

Einstom Engay, Dewang Huo, Radu Malureanu, Ada-Ioana Bunea, Andrei Lavrinenko

Proceedings Volume 11769, 117690C (2021) https://doi.org/10.1117/12.2592398

KEYWORDS: Phase imaging, Dielectrics, Dielectric polarization, Wavefronts, Wave propagation, Refractive index, Photodetectors, Phase interferometry, Optical inspection, Nanofabrication

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Proceedings Article | 17 September 2018 Presentation

Presentation

Investigation of effective medium applicability for HMMs with period 30 times smaller than the wavelength of light (Conference Presentation)

Johneph Sukham, Osamu Takayama, Andrey Bogdanov, Maryam Mahmoodi, Andrei Lavrinenko, Radu Malureanu

Proceedings Volume 10719, 107192J (2018) https://doi.org/10.1117/12.2319955

KEYWORDS: Gold, Dielectrics, Metals, Metamaterials, Nanophotonics, Thermal engineering, Super resolution, Thermal sensing, Plasmonics, Visible radiation

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Proceedings Article | 7 May 2018 Presentation + Paper

Presentation + Paper

High-quality ultrathin gold layers for use in plasmonic and metamaterials applications

Johneph Sukham, Osamu Takayama, Andrei Lavrinenko, Radu Malureanu

Proceedings Volume 10671, 1067111 (2018) https://doi.org/10.1117/12.2306135

KEYWORDS: Gold, Chromium, Plasmonics, Reflection, Metamaterials, Plasmons, Scanning electron microscopy, Visible radiation, Scattering, Reflectance spectroscopy

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Proceedings Article | 17 September 2016 Paper

Paper

Fabrication of deep-profile Al-doped ZnO one- and two-dimensional lattices as plasmonic elements

Flemming Jensen, Evgeniy Shkondin, Osamu Takayama, Pernille Larsen, Mikkel Mar, Radu Malureanu, Andrei Lavrinenko

Proceedings Volume 9921, 99210J (2016) https://doi.org/10.1117/12.2236820

KEYWORDS: Titanium dioxide, Plasmonics, Atomic layer deposition, Zinc oxide, Doping, Coating, Silicon, Etching, Deep reactive ion etching, Aluminum

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Proceedings Article | 19 April 2016 Paper

Paper

Nonlinear effects in propagation of long-range surface plasmon polaritons in gold strip waveguides

Oleg Lysenko, Morten Bache, Radu Malureanu, Andrei Lavrinenko

Proceedings Volume 9884, 988420 (2016) https://doi.org/10.1117/12.2224500

KEYWORDS: Gold, Plasmonic waveguides, Wave propagation, Surface plasmon polaritons, Plasmonics, Picosecond phenomena, Waveguides, Electrons, Nonlinear optics, Dispersion, Metals, Absorption

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Proceedings Article | 18 April 2016 Presentation + Paper

Presentation + Paper

Effective medium approximation for deeply subwavelength all-dielectric multilayers: when does it break down?

Andrei Lavrinenko, Sergei Zhukovsky, Andrei Andryieuski, Osamu Takayama, Evgeniy Shkondin, Radu Malureanu, Flemming Jensen

Proceedings Volume 9883, 988317 (2016) https://doi.org/10.1117/12.2229220

KEYWORDS: Metamaterials, Atomic layer deposition, Reflectivity, Resonators, Homogenization, Ellipsometry, Nanoengineering, Electromagnetism, Homogenization, Atomic layer deposition, Refractive index, Multilayers, Prisms, Polarization

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Proceedings Article | 8 March 2014 Paper

Paper

Metal membrane with dimer slots as a universal polarizer

Sergej Zhukovsky, Maksim Zalkovskij, Radu Malureanu, Christian Kremers, Dmitry Chigrin, Peter Tang, Peter Jepsen, Andrei Lavrinenko

Proceedings Volume 8989, 89890T (2014) https://doi.org/10.1117/12.2039471

KEYWORDS: Polarization, Terahertz radiation, Metals, Metamaterials, Polarizers, Electromagnetism, Nickel, Numerical simulations, Dichroic materials, Optical properties

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Proceedings Article | 6 March 2013 Paper

Paper

Plasmonic modulator based on thin metal-semiconductor-metal waveguide with gain core

Viktoriia Babicheva, Radu Malureanu, Andrei Lavrinenko

Proceedings Volume 8627, 86270X (2013) https://doi.org/10.1117/12.2002573

KEYWORDS: Waveguides, Metals, Modulators, Plasmonics, Wave propagation, Semiconductors, Modulation, Refractive index, Absorption, Photonic integrated circuits

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Proceedings Article | 1 November 2012 Paper

Paper

Metamaterials modelling, fabrication, and characterisation techniques

Radu Malureanu, Maksim Zalkovskij, Andrei Andryieuski, Andrey Novitsky, Alexandra Ivinskaya, Peter Uhd Jepesen, Aurelian Popescu, Dan Savastru, Andrei Lavrinenko

Proceedings Volume 8411, 841104 (2012) https://doi.org/10.1117/12.964986

KEYWORDS: Terahertz radiation, Metals, Metamaterials, Refractive index, Fabrication, Waveguides, Modeling, Silver, Silica, Plasmonics

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Proceedings Article | 2 May 2012 Paper

Paper

Absorption enhancement in metal nanoparticles for photoemission current for solar cells

C. Gritti, A. Novitsky, R. Malureanu, A. V. Lavrinenko, A. V. Uskov, B. Kardynal

Proceedings Volume 8438, 84380K (2012) https://doi.org/10.1117/12.922445

KEYWORDS: Nanoparticles, Solar cells, Absorption, Semiconductors, Metals, Photons, Gold, Surface plasmons, Gallium arsenide, Photovoltaics

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Proceedings Article | 23 February 2012 Paper

Paper

Wave-front-engineered grating mirrors for VCSELs

L. Carletti, R. Malureanu, J. Mørk, I.-S. Chung

Proceedings Volume 8270, 82700E (2012) https://doi.org/10.1117/12.908366

KEYWORDS: Vertical cavity surface emitting lasers, Optical design, Beam steering, Mirrors, Reflectivity, Refractive index, Etching, Wavefronts, Structural engineering, Polarization

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Proceedings Article | 18 May 2011 Paper

Paper

Fabrication and characterization of woodpile structures

M. Zalkovskij, R. Malureanu, A. Andryieuski, A. Lavrinenko

Proceedings Volume 8070, 80700M (2011) https://doi.org/10.1117/12.886279

KEYWORDS: Silver, Polymers, Metals, Two photon polymerization, Photonics, Fabrication, Silica, Glasses, Scanning electron microscopy, Diffraction gratings

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Proceedings Article | 29 April 2010 Paper

Paper

Fractal THz metamaterials: design, fabrication, and characterisation

R. Malureanu, P. Jepsen, S. Xiao, L. Zhou, D. Cooke, A. Andryieuski, A. Lavrinenko

Proceedings Volume 7711, 77110M (2010) https://doi.org/10.1117/12.854858

KEYWORDS: Terahertz radiation, Fractal analysis, Metamaterials, Polarization, Reflection, Silicon, Semiconducting wafers, Finite-difference time-domain method, Nickel, Photoresist materials

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Proceedings Article | 25 April 2008 Paper

Paper

Photonic wires sidewall roughness measures using atomic force microscope capabilities

Radu Malureanu, Lars Hagedorn Frandsen

Proceedings Volume 6995, 69950R (2008) https://doi.org/10.1117/12.778874

KEYWORDS: Atomic force microscopy, Photonic crystals, Calibration, Atomic force microscope, Error analysis, Etching, Radium, Metrology, Photonic crystal devices, Statistical analysis

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Proceedings Article | 28 September 2006 Paper

Paper

New ways in creating pixelgram images

Radu Malureanu, Enzo Di Fabrizio

Proceedings Volume 6402, 64020F (2006) https://doi.org/10.1117/12.690158

KEYWORDS: Diffraction gratings, Diffraction, Photoresist materials, Chromium, Optical lithography, Digital video discs, Human-machine interfaces, Interfaces, Electron beam lithography, Cadmium sulfide

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Proceedings Article | 14 December 2005 Paper

Paper

Numerical analysis of forces in optical tweezers in the Rayleigh regime

V. Garbin, D. Cojoc, R. Kulkarni, R. Malureanu, E. Ferrari, M. Nadasan, E. Di Fabrizio

Proceedings Volume 5972, 597205 (2005) https://doi.org/10.1117/12.639430

KEYWORDS: Particles, Dielectrics, Nanoparticles, Gaussian beams, Scattering, Optical tweezers, Laser scattering, Rayleigh scattering, Absorption, Gold

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Proceedings Article | 19 August 2005 Paper

Paper

Theoretical calculation of trapping forces in oil-immersed microscope objectives

R. Malureanu, E. Di Fabrizio

Proceedings Volume 5930, 59302C (2005) https://doi.org/10.1117/12.617289

KEYWORDS: Optical spheres, Optical tweezers, Objectives, Microscopes, Particles, Beam propagation method, Monochromatic aberrations, Refractive index, Scattering, Beam shaping

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Proceedings Article | 18 October 2004 Paper

Paper

Advantages and disadvantages in using oil-immersed microscope objectives for optical trapping

Radu Malureanu, Enrico Ferrari, Enzo Di Fabrizio

Proceedings Volume 5514, (2004) https://doi.org/10.1117/12.559402

KEYWORDS: Particles, Microscopes, Optical tweezers, Objectives, Optical spheres, Silica, LCDs, Calculus, Refractive index, Geometrical optics

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Proceedings Article | 18 October 2004 Paper

Paper

Optical trapping and micromanipulation in microchannels with various configurations

Dan Cojoc, Enrico Ferrari, Valeria Garbin, Alessandro Carpentiero, Radu Malureanu, Igor Mokhun, Oleg Angelsky, Enzo Di Fabrizio

Proceedings Volume 5514, (2004) https://doi.org/10.1117/12.559595

KEYWORDS: Particles, Capillaries, Microscopes, Microfluidics, Spatial light modulators, Optical tweezers, Microfabrication, Molybdenum, Diffractive optical elements, Objectives

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Proceedings Article | 4 June 2004 Paper

Paper

Design and implementation of optical tweezer arrays using diffractive optical elements

Dan Cojoc, Enrico Ferrari, Stefano Cabrini, Radu Malureanu, Miltcho Danailov, Alessandro Carpentiero, Mauro Prasciolu, Rakesh Kumar, Luca Businaro, Enzo Di Fabrizio

Proceedings Volume 5477, (2004) https://doi.org/10.1117/12.560086

KEYWORDS: Particles, Diffractive optical elements, Optical tweezers, Spatial light modulators, Microscopes, Optical spheres, Signal to noise ratio, Diffraction, Spherical lenses, LCDs

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Proceedings Article | 20 October 2003 Paper

Paper

Nano-optical elements fabricated by e-beam and x-ray lithography

Enzo Di Fabrizio, Dan Cojoc, Stefano Cabrini, Luca Businaro, Matteo Altissimo, Lisa Vaccari, Filippo Romanato, Radu Malureanu, Burkhard Kaulich, Thomas Wilhein, Jean Susini

Proceedings Volume 5225, (2003) https://doi.org/10.1117/12.507880

KEYWORDS: X-rays, Diffractive optical elements, X-ray lithography, X-ray microscopy, Electron beam lithography, Diffraction, Photomasks, X-ray optics, Digital image correlation, Optical components

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Proceedings Article | 30 September 2003 Paper

Paper

Approximate and rigorous approaches to design diffractive gratings in the resonance domain

R. Malureanu, Dan Cojoc, Matteo Altissimo, Luca Businaro, Stefano Cabrini, Enzo Di Fabrizio

Proceedings Volume 5227, (2003) https://doi.org/10.1117/12.519805

KEYWORDS: Diffraction, Diffraction gratings, Optical design, Diffractive optical elements, Polarization, Binary data, Nanotechnology, Computer simulations, Nanolithography, Modulation

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Showing 5 of 23 publications

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