Dr. Laszlo Sturmann Profile

Dr. Laszlo Sturmann

Research Scientist at CHARA Array

SPIE Involvement:

Author

Publications (44)

Proceedings Article | 26 August 2022 Poster + Paper

The CHARA Michelson Array Pathfinder

R. Ligon, M. Anderson, N. Anugu, T. ten Brummelaar, C. Farrington, D. Gies, S. Golden, R. Koehler, F. Reynaud, S. Ridgway, G. Schaefer, N. Scott, L. Sturmann, N. Turner, C. Woods

Proceedings Volume 12183, 121832N (2022) https://doi.org/10.1117/12.2629530

KEYWORDS: Optical fibers, Telescopes, Optical instrument design, Adaptive optics

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Proceedings Article | 13 December 2020 Presentation + Paper

Recent highlights from The CHARA Array

Gail Schaefer, Theo ten Brummelaar, Douglas Gies, Matthew Anderson, Christopher Farrington, Steven Golden, Jeremy Jones, Robert Klement, Olli Majoinen, Stephen Ridgway, Judit Sturmann, Laszlo Sturmann, Nils Turner, Norm Vargas, Larry Webster, Craig Woods

Proceedings Volume 11446, 1144605 (2020) https://doi.org/10.1117/12.2562665

KEYWORDS: Optical arrays, Interferometers, Telescopes, Observatories, Image resolution, Binary data, Environmental sensing, Adaptive optics

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Proceedings Article | 13 December 2020 Presentation + Paper

A new frontier for J-band interferometry: dual-band NIR interferometry with MIRC-X

Aaron Labdon, John Monnier, Stefan Kraus, Jean-Baptiste Le Bouquin, Benjamin Setterholm, Narsireddy Anugu, Theo ten Brummelaar, Cyprien Lanthermann, Claire Davies, Jacob Ennis, Tyler Gardner, Gail Schaefer, Laszlo Sturmann, Judit Sturmann

Proceedings Volume 11446, 114460H (2020) https://doi.org/10.1117/12.2561371

KEYWORDS: Interferometry, Near infrared, Birefringence, Atmospheric corrections, Atmospheric modeling, Telescopes, Instrument modeling

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Proceedings Article | 13 December 2020 Paper

CHARA array adaptive optics: complex operational software and performance

Narsireddy Anugu, Theo ten Brummelaar, Nils Turner, Matthew Anderson, Jean-Baptiste Le Bouquin, Judit Sturmann, Laszlo Sturmann, Chris Farrington, Norm Vargas, Olli Majoinen, Michael Ireland, John Monnier, Denis Mourard, Gail Schaefer, Douglas Gies, Stephen Ridgway, Stefan Kraus, Cyril Petit, Michel Tallon, Caroline Lim, Philippe Berio

Proceedings Volume 11446, 1144622 (2020) https://doi.org/10.1117/12.2561560

KEYWORDS: Adaptive optics, Telescopes, Wavefront sensors, Optical arrays, Cameras, Deformable mirrors, Actuators, Space telescopes, Interferometers, Binary data

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Proceedings Article | 13 December 2020 Presentation + Paper

Progress of the CHARA/SPICA project

C. Pannetier, D. Mourard, P. Berio, F. Cassaing, F. Allouche, N. Anugu, C. Bailet, T. ten Brummelaar, J. Dejonghe, D. Gies, L. Jocou, S. Kraus, S. Lacour, S. Lagarde, J. B. Le Bouquin, D. Lecron, J. Monnier, N. Nardetto, F. Patru, K. Perraut, R. Petrov, S. Rousseau, P. Stee, J. Sturmann, L. Sturmann

Proceedings Volume 11446, 114460T (2020) https://doi.org/10.1117/12.2560625

KEYWORDS: Glasses, Stars, Fourier transforms, Optical tracking, Photons, Integrated optics, Coherence (optics), Atmospheric optics, Planets, Interferometry

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Proceedings Article | 10 July 2018 Presentation + Paper

The CHARA array adaptive optics program

Theo ten Brummelaar, Judit Sturmann, Laszlo Sturmann, Matthew Anderson, Nils Turner, Michael Ireland, John Monnier, Denis Mourard, Stephen Ridgway, Douglas Gies, Jean-Baptiste Le Bouquin

Proceedings Volume 10703, 1070304 (2018) https://doi.org/10.1117/12.2312311

KEYWORDS: Adaptive optics, Telescopes, Interferometers, Interferometry, Mirrors, Actuators, Visible radiation, Imaging systems, Astronomy, Spatial resolution

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Proceedings Article | 9 July 2018 Presentation + Paper

Recent technical and scientific highlights from the CHARA array

Douglas Gies, Theo ten Brummelaar, Matthew Anderson, Christopher Farrington, Steven Golden, Jeremy Jones, Robert Klement, Olli Majoinen, Gail Schaefer, Judit Sturmann, Laszlo Sturmann, Nils Turner, Norman Vargas, Larry Webster, Craig Woods, Stephen Ridgway

Proceedings Volume 10701, 1070102 (2018) https://doi.org/10.1117/12.2311755

KEYWORDS: Stars, Adaptive optics, Telescopes, Interferometry, Planets, Astronomy, Data archive systems, Observatories, K band

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Proceedings Article | 4 August 2016 Paper

An update on the CHARA array

T. ten Brummelaar, D. Gies, H. McAlister, S. Ridgway, J. Sturmann, L. Sturmann, G. Schaefer, N. Turner, C. Farrington, N. Scott, J. Monnier, M. Ireland

Proceedings Volume 9907, 990703 (2016) https://doi.org/10.1117/12.2232125

KEYWORDS: Adaptive optics, Telescopes, Interferometry, Observatories, Interferometers, Astronomy, Data archive systems, Visible radiation, Mirrors, Spectral resolution

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Proceedings Article | 7 August 2014 Paper

CHARA array adaptive optics II: non-common-path correction and downstream optics

Theo ten Brummelaar, Xiao Che, Harold McAlister, Michael Ireland, John Monnier, Denis Mourard, Stephen Ridgway, Judit Sturmann, Laszlo Sturmann, Nils Turner, Peter Tuthill

Proceedings Volume 9148, 91484Q (2014) https://doi.org/10.1117/12.2056662

KEYWORDS: Adaptive optics, Telescopes, Stars, Optical arrays, Optical calibration, Wavefronts, Deformable mirrors, Interferometers, Infrared telescopes, Wavefront sensors

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Proceedings Article | 24 July 2014 Paper

MWC 314: binary results from optical interferometry compared with spectroscopy and photometry

Noel Richardson, Anthony F. J. Moffat, Raphael Maltais-Tariant, Herbert Pablo, Douglas Gies, Nicole St-Louis, Gail Schaefer, Anatoly Miroshnichenko, Chris Farrington, Emily Aldoretta, Etienne Artigau, Tabetha Boyajian, Katie Gordon, P. Goldfinger, Jeremy Jones, Rachel Matson, Harold McAlister, David O'Brien, Deepak Raghavan, Tahina Ramiaramanantsoa, Stephen Ridgway, Nic Scott, Judit Sturmann, Laszlo Sturmann, Theo ten Brummelaar, Joshua Thomas, Nils Turner, Norm Vargas, Sergey Zharikov

Proceedings Volume 9146, 91460G (2014) https://doi.org/10.1117/12.2055364

KEYWORDS: Stars, Spectroscopy, Interferometry, Photometry, Absorption, Telescopes, Calibration, Spectrophotometry, Binary data, Observatories

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Proceedings Article | 24 July 2014 Paper

JouFLU: upgrades to the fiber linked unit for optical recombination (FLUOR) interferometric beam combiner.

N. Scott, E. Lhomé, T. ten Brummelaar, V. Coudé du Foresto, R. Millan-Gabet, J. Sturmann, L. Sturmann

Proceedings Volume 9146, 91461A (2014) https://doi.org/10.1117/12.2057129

KEYWORDS: Cameras, Interferometry, Fourier transforms, Mirrors, Visibility, Optical alignment, Telescopes, Raster graphics, Stars, Polarization

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Proceedings Article | 24 July 2014 Paper

The CHARA array adaptive optics I: common-path optical and mechanical design, and preliminary on-sky results

Xiao Che, Laszlo Sturmann, John Monnier, Theo ten Brummelaar, Judit Sturmann, Stephen Ridgway, Michael Ireland, Nils Turner, Harold McAlister

Proceedings Volume 9148, 914830 (2014) https://doi.org/10.1117/12.2055693

KEYWORDS: Adaptive optics, Telescopes, Mirrors, Cameras, Wavefront sensors, Beam splitters, Collimation, Electron multiplying charge coupled devices, Optical arrays, Near infrared

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Proceedings Article | 13 September 2012 Paper

Adaptive optics for the CHARA array

Theo ten Brummelaar, Laszlo Sturmann, Judit Sturmann, Stephen Ridgway, John Monnier, Michael Ireland, Xiao Che, Harold McAlister, Nils Turner, P. Tuthill

Proceedings Volume 8447, 84473I (2012) https://doi.org/10.1117/12.927031

KEYWORDS: Adaptive optics, Telescopes, Stars, Cameras, Mirrors, Sensors, Interferometers, Wavefront sensors, Deformable mirrors, Astronomy

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Proceedings Article | 12 September 2012 Paper

Recent technical and scientific highlights from the CHARA Array

Harold McAlister, Theo ten Brummelaar, Stephen Ridgway, Douglas Gies, Judit Sturmann, Laszlo Sturmann, Nils Turner, Gail Schaefer, Tabetha Boyajian, Christopher Farrington, P. Goldfinger, Larry Webster

Proceedings Volume 8445, 84450H (2012) https://doi.org/10.1117/12.926452

KEYWORDS: Stars, Interferometry, Telescopes, Imaging systems, Planets, Visible radiation, Visibility, Astronomy, Spectral resolution, K band

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Proceedings Article | 12 September 2012 Paper

Data analysis for the CHARA Array CLIMB beam combiner

Theo ten Brummelaar, Judit Sturmann, Harold McAlister, Laszlo Sturmann, Nils Turner, Chris Farrington, Gail Schaefer, P. Goldfinger, Brian Kloppenborg

Proceedings Volume 8445, 84453C (2012) https://doi.org/10.1117/12.925023

KEYWORDS: Visibility, Interference (communication), Telescopes, Fringe analysis, Data analysis, Mirrors, Signal to noise ratio, Interferometry, Calibration, Camera shutters

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Proceedings Article | 12 September 2012 Paper

JouFLU: an upgraded FLUOR beam combiner at the CHARA Array

E. Lhomé, N. Scott, T. ten Brummelaar, B. Mollier, J. Reess, F. Chapron, T. Buey, A. Sevin, J. Sturmann, L. Sturmann, V. Coudé du Foresto

Proceedings Volume 8445, 84452I (2012) https://doi.org/10.1117/12.925905

KEYWORDS: Cameras, Telescopes, Fourier transforms, Infrared radiation, Mirrors, K band, Optical alignment, Visibility, Infrared telescopes, Interferometry

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Proceedings Article | 12 September 2012 Paper

Performance, results, and prospects of the visible spectrograph VEGA on CHARA

Denis Mourard, Mounir Challouf, Roxanne Ligi, Philippe Bério, Jean-Michel Clausse, Jérôme Gerakis, Laurent Bourges, Nicolas Nardetto, Karine Perraut, Isabelle Tallon-Bosc, H. McAlister, T. ten Brummelaar, S. Ridgway, J. Sturmann, L. Sturmann, N. Turner, C. Farrington, P. Goldfinger

Proceedings Volume 8445, 84450K (2012) https://doi.org/10.1117/12.925223

KEYWORDS: Calibration, Sensors, Visibility, Stars, Signal to noise ratio, Visible radiation, Spectral resolution, Error analysis, Spectrographs, Databases

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Proceedings Article | 1 November 2010 Paper

Adaptive optics for the CHARA array II

Stephen Ridgway, Theo ten Brummelaar, Judit Sturmann, Laszlo Sturmann, Nils Turner, Harold McAlister, John Monnier, Michael Ireland, Peter Tuthill, Derek Coburn, Chris Dainty, Nicholas Devaney, Alexander Goncharov, David Mozurkewich

Proceedings Volume 7734, 77340B (2010) https://doi.org/10.1117/12.857685

KEYWORDS: Adaptive optics, Telescopes, Atmospheric optics, Wavefronts, Visibility, Interferometry, Space telescopes, Atmospheric propagation, Monte Carlo methods, Astronomy

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Proceedings Article | 22 July 2010 Paper

Modified telescope alignment procedure for improving the beam quality of the CHARA Telescopes

Laszlo Sturmann, Judit Sturmann, Theo ten Brummelaar, Harold McAlister

Proceedings Volume 7734, 773445 (2010) https://doi.org/10.1117/12.857883

KEYWORDS: Telescopes, Wavefronts, Monochromatic aberrations, Mirrors, Visibility, Alignment procedures, Stars, Optical alignment, Sensors, Wavefront sensors

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Proceedings Article | 22 July 2010 Paper

Performances and first science results with the VEGA/CHARA visible instrument

D. Mourard, M. Tallon, Ph. Bério, D. Bonneau, O. Chesneau, J. Clausse, O. Delaa, N. Nardetto, K. Perraut, A. Spang, Ph. Stee, I. Tallon-Bosc, H. McAlister, T. ten Brummelaar, J. Sturmann, L. Sturmann, N. Turner, C. Farrington, P. Goldfinger

Proceedings Volume 7734, 77340D (2010) https://doi.org/10.1117/12.856100

KEYWORDS: Stars, Visibility, Interferometry, Spectral resolution, Spectrographs, Telescopes, Visible radiation, Calibration, Signal to noise ratio, Spatial resolution

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Proceedings Article | 22 July 2010 Paper

An update on the CHARA Array

Theo ten Brummelaar, Harold McAlister, Stephen Ridgway, Douglas Gies, Judit Sturmann, Laszlo Sturmann, Nils Turner, Gail Schaefer, Christopher Farrington, P. Goldfinger

Proceedings Volume 7734, 773403 (2010) https://doi.org/10.1117/12.856028

KEYWORDS: Stars, Telescopes, Control systems, Visible radiation, Observatories, Imaging systems, Interferometry, K band, Phase measurement, Astronomy

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Proceedings Article | 22 July 2010 Paper

Dual three-way infrared beam combiner at the CHARA Array

Judit Sturmann, Theo ten Brummelaar, Laszlo Sturmann, Harold McAlister

Proceedings Volume 7734, 77343A (2010) https://doi.org/10.1117/12.857517

KEYWORDS: Mirrors, Telescopes, Cameras, Infrared radiation, Detector arrays, Infrared cameras, Infrared detectors, Infrared imaging, K band, Sensors

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Proceedings Article | 28 July 2008 Paper

Adaptive optics for the CHARA Array

Stephen Ridgway, Harold McAlister, Theo ten Brummelaar, Antoine Merand, Judit Sturmann, Laszlo Sturmann, Nils Turner

Proceedings Volume 7013, 70133B (2008) https://doi.org/10.1117/12.790230

KEYWORDS: Adaptive optics, Visibility, Atmospheric optics, Telescopes, Wavefronts, Sensors, Refraction, K band, Spatial filters, Wavefront sensors

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Proceedings Article | 28 July 2008 Paper

VEGA: a new visible spectrograph and polarimeter on the CHARA Array

D. Mourard, K. Perraut, D. Bonneau, J. M. Clausse, Ph. Stee, I. Tallon-Bosc, P. Kervella, Y. Hughes, A. Marcotto, A. Blazit, O. Chesneau, A. Domiciano de Souza, R. Foy, F. Hénault, D. Mattei, G. Merlin, A. Roussel, M. Tallon, E. Thiebaut, H. McAlister, T. ten Brummelaar, J. Sturmann, L. Sturmann, N. Turner, C. Farrington, P. J. Goldfinger

Proceedings Volume 7013, 701323 (2008) https://doi.org/10.1117/12.787505

KEYWORDS: Spectrographs, Visible radiation, Spectral resolution, Sensors, Polarimetry, Stars, Signal to noise ratio, Interferometry, Mirrors, Telescopes

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Proceedings Article | 28 July 2008 Paper

Sensitive visible interferometry with PAVO

Michael Ireland, Antoine Mérand, Theo ten Brummelaar, Peter Tuthill, Gail Schaefer, Nils Turner, Judit Sturmann, Laszlo Sturmann, Harold McAlister

Proceedings Volume 7013, 701324 (2008) https://doi.org/10.1117/12.788386

KEYWORDS: Signal to noise ratio, Prisms, Visibility, Spatial filters, Sensors, Stars, Interferometry, Interferometers, Fourier transforms, Astronomy

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Proceedings Article | 28 July 2008 Paper

An update on the CHARA array

Theo ten Brummelaar, Harold McAlister, Steve Ridgway, Douglas Gies, Judit Sturmann, Laszlo Sturmann, Nils Turner, Antoine Mérand, Robert Thompson, Christopher Farrington, P.J. Goldfinger

Proceedings Volume 7013, 701308 (2008) https://doi.org/10.1117/12.788008

KEYWORDS: Stars, Telescopes, Imaging systems, Visible radiation, Interferometry, Mirrors, Astronomy, Spectral resolution, Sensors, Visibility

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Proceedings Article | 15 July 2008 Paper

Imaging the surface of Altair and a MIRC update

John Monnier, M. Zhao, E. Pedretti, N. Thureau, M. Ireland, P. Muirhead, J.-P. Berger, R. Millan-Gabet, G. Van Belle, T. ten Brummelaar, H. McAlister, S. Ridgway, N. Turner, L. Sturmann, J. Sturmann, D. Berger, A. Tannirkulam, J. Blum

Proceedings Volume 7013, 701302 (2008) https://doi.org/10.1117/12.789754

KEYWORDS: Calibration, Telescopes, Stars, Visibility, Binary data, Infrared radiation, Infrared imaging, Single mode fibers, Interferometers, Spectrographs

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Proceedings Article | 29 June 2006 Paper

Nine-channel tip/tilt detector at the CHARA Array

Laszlo Sturmann, Judit Sturmann, Theo ten Brummelaar, Harold McAlister

Proceedings Volume 6268, 62683T (2006) https://doi.org/10.1117/12.671855

KEYWORDS: Mirrors, Charge-coupled devices, Telescopes, Collimators, Objectives, Microscopes, Sensors, Cameras, Vignetting, Relays

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Proceedings Article | 29 June 2006 Paper

A survey and characterization of extrasolar planetary systems host stars using the CHARA Array

E. Baines, H. McAlister, T. ten Brummelaar, J. Sturmann, L. Sturmann, N. Turner

Proceedings Volume 6268, 626845 (2006) https://doi.org/10.1117/12.671553

KEYWORDS: Stars, Planetary systems, Visibility, Calibration, Planets, Exoplanets, Surface conduction electron emitter displays, Systems modeling, Modulation, Atmospheric modeling

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Proceedings Article | 29 June 2006 Paper

VEGA: a visible spectrograph and polarimeter for CHARA

D. Mourard, D. Bonneau, J.-M. Clausse, F. Hénault, A. Marcotto, A. Blazit, S. Bosio, Y. Bresson, T. ten Brummelaar, P. Kervella, S. Lagarde, H. McAlister, A. Mérand, G. Merlin, N. Nardetto, R. Petrov, A. Roussel, K. Rousselet-Perraut, P. Stee, J. Sturmann, L. Sturmann, I. Tallon-Bosc

Proceedings Volume 6268, 62683Q (2006) https://doi.org/10.1117/12.684475

KEYWORDS: Spectrographs, Visible radiation, Cameras, Sensors, Spectral resolution, Telescopes, Polarimetry, Visibility, Polarization, Signal to noise ratio

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Proceedings Article | 28 June 2006 Paper

Michigan Infrared Combiner (MIRC): commissioning results at the CHARA Array

John Monnier, Ettore Pedretti, Nathalie Thureau, Jean-Philippe Berger, Rafael Millan-Gabet, Theo ten Brummelaar, Harold McAlister, Judit Sturmann, Lazlo Sturmann, Phil Muirhead, Ajay Tannirkulam, Scott Webster, Ming Zhao

Proceedings Volume 6268, 62681P (2006) https://doi.org/10.1117/12.671982

KEYWORDS: Optical fibers, Infrared radiation, Telescopes, Infrared telescopes, Infrared imaging, Cameras, Sensors, Interferometers, K band, Spectrographs

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Proceedings Article | 27 June 2006 Paper

Recent progress at the CHARA interferometric array

H. McAlister, T. ten Brummelaar, L. Sturmann, J. Sturmann, N. Turner, S. Ridgway

Proceedings Volume 6268, 62680G (2006) https://doi.org/10.1117/12.671811

KEYWORDS: Stars, Interferometry, Telescopes, Visibility, Data modeling, Calibration, Mirrors, Astronomy, Interferometers, Atmospheric modeling

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Proceedings Article | 20 October 2004 Paper

CHARA recent technology and science

Harold McAlister, Theo ten Brummelaar, Jason Aufdenberg, William Bagnuolo, David Berger, Vincent Coude du Foresto, Antoine Merand, Chad Ogden, Stephen Ridgway, Judit Sturmann, Laszlo Sturmann, Stuart Taylor, Nils Turner

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.551697

KEYWORDS: Telescopes, Mirrors, Stars, Visibility, Cameras, Calibration, Control systems, Video, Video surveillance, Data modeling

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