Prof. Sylvain Veilleux Profile

Prof. Sylvain Veilleux

at Univ of Maryland College Park

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Author

Publications (11)

Proceedings Article | 29 August 2022 Paper

RIMAS: testing, and categorization of grism spectral performance

Joseph Durbak, Alexander S. Kutyrev, Sylvain Veilleux, Gregory Mosby, Nathan J. Miller, Paul J. Kuzmenko

Proceedings Volume 12184, 1218487 (2022) https://doi.org/10.1117/12.2630430

KEYWORDS: Sensors, Lamps, Krypton, Xenon, Mercury, Argon, Spectrographs, Near infrared, Spectroscopes, Infrared spectroscopy

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Proceedings Article | 13 December 2020 Poster + Paper

Development of an integrated near-IR astrophotonic spectrograph

Pradip Gatkine, Meghna Sitaram, Sylvain Veilleux, Mario Dagenais, Joss Bland-Hawthorn

Proceedings Volume 11451, 114516L (2020) https://doi.org/10.1117/12.2561748

KEYWORDS: Spectrographs, Astrophotonics, Dispersion, Telescopes, Multimode fibers, Spectral resolution, Lenses, Prisms, Sensors, Photodetectors

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Proceedings Article | 13 December 2020 Poster + Paper

RIMAS: testing, and categorization of grism spectral performance

Joseph Durbak, Alexander Kutyrev, Sylvain Veilleux, Gregory Mosby, Gennadiy Lotkin, Jillian Kunze, Kenichi Sakai, John Capone, Vicki Toy, Paul Kuzmenko

Proceedings Volume 11451, 114515Y (2020) https://doi.org/10.1117/12.2561876

KEYWORDS: Imaging spectroscopy, Spectroscopy, Near infrared, Telescopes, Infrared spectroscopy, Mirrors, Image resolution, Spectroscopes, Infrared imaging, Infrared radiation

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Proceedings Article | 10 July 2018 Paper

Towards a multi-input astrophotonic AWG spectrograph

Pradip Gatkine, Sylvain Veilleux, Yiwen Hu, Joss Bland-Hawthorn, Mario Dagenais

Proceedings Volume 10706, 1070656 (2018) https://doi.org/10.1117/12.2312789

KEYWORDS: Waveguides, Spectrographs, Spectral resolution, Astrophotonics, Telescopes, Computer aided design, Astronomy, Single mode fibers, Near infrared, Diffraction gratings

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Astrophotonics is the new frontier technology to make suitable diffraction-limited spectrographs for the next generation of large telescopes. Astrophotonic spectrographs are miniaturized, robust and cost-effective. For various astronomical studies, such as probing the early universe, observing in near infrared (NIR) is crucial. Therefore, our research group is developing moderate resolution (R ~ 1500) on-chip photonic spectrographs in the NIR bands (J Band: 1.1-1.4 μm; H band: 1.45-1.7 μm). To achieve this, we use the concept of arrayed waveguide gratings (AWGs). We fabricate the device using a silica-on-silicon substrate. The waveguides on this AWG are 2 μm wide and 0.1 μm high Si₃N₄ core buried inside a 15 μm thick SiO₂ cladding.

To make the maximal use of astrophotonic integration such as coupling the AWGs with multiple single-mode fibers coming from photonic lanterns or fiber Bragg gratings (FBGs), we require a multi-input AWG design. In a multi-input AWG, the output spectrum due to each individual input channel overlaps to produce a combined spectrum from all inputs. This on-chip combination of light effectively improves the signal-to-noise ratio as compared to spreading the photons to several AWGs with single inputs. In this paper, we present the design and simulation results of an AWG in the H band with three input waveguides (channels). The resolving power of individual input channels is ~1500, while the overall resolving power with three inputs together is ~500, 600, 750 in three different configurations simulated here. The device footprint is only 16 mm x 7 mm. The free spectral range of the device is ~9.5 nm around a central wavelength of 1600 nm. For the standard multi-input AWG, the relative shift between the output spectra due to adjacent input channels is about 1.6 nm, which roughly equals one spectral channel spacing. In this paper, we discuss ways to increase the resolving power and the number of inputs without compromising the free spectral range or throughput.

Proceedings Article | 9 August 2016 Paper

Wide field of view spectroscopy using solid Fabry-Perot interferometers

Jonathan Nikoleyczik, Alexander Kutyrev, Harvey Moseley, Sylvain Veilleux

Proceedings Volume 9908, 99085N (2016) https://doi.org/10.1117/12.2232864

KEYWORDS: Spectroscopy, Fabry–Perot interferometry, Refraction, Spectroscopy, Neodymium, Electroluminescent displays, Cameras, Image restoration, Panoramic photography, Astronomy, Absorption

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Proceedings Article | 9 August 2016 Paper

H2RG detector characterization for RIMAS and instrument efficiencies

Vicki Toy, Alexander Kutyrev, John Capone, Thomas Hams, F. Robinson, Gennadiy Lotkin, Sylvain Veilleux, Samuel Moseley, Neil Gehrels, Stuart Vogel

Proceedings Volume 9908, 99083I (2016) https://doi.org/10.1117/12.2230181

KEYWORDS: Sensors, Infrared telescopes, Imaging spectroscopy, Telescopes, Atmospheric optics, Infrared telescopes, Spectroscopes, Space telescopes, Cameras, Signal detection, Astronomy

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Proceedings Article | 22 July 2016 Paper

Multicore fibre technology: the road to multimode photonics

J. Bland-Hawthorn, Seong-Sik Min, Emma Lindley, Sergio Leon-Saval, Simon Ellis, Jon Lawrence, Nicolas Beyrand, Martin Roth, Hans-Gerd Löhmannsröben, Sylvain Veilleux

Proceedings Volume 9912, 99121O (2016) https://doi.org/10.1117/12.2231924

KEYWORDS: Photonics, Fiber Bragg gratings, Phase modulation, Mirrors, Ultraviolet radiation, Refractive index, Single mode fibers, Beam splitters, Interferometers, Telescopes

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Proceedings Article | 22 July 2016 Paper

Development of high-resolution arrayed waveguide grating spectrometers for astronomical applications: first results

Pradip Gatkine, Sylvain Veilleux, Yiwen Hu, Tiecheng Zhu, Yang Meng, Joss Bland-Hawthorn, Mario Dagenais

Proceedings Volume 9912, 991271 (2016) https://doi.org/10.1117/12.2231873

KEYWORDS: Waveguides, Astronomy, Spectral resolution, Near infrared, Spectrographs, Spectrometers, Polarization, Computer aided design, Phase modulation, Wave propagation

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Proceedings Article | 8 July 2014 Paper

Cryogenic optical systems for the rapid infrared imager/spectrometer (RIMAS)

John Capone, David Content, Alexander Kutyrev, Frederick Robinson, Gennadiy Lotkin, Vicki Toy, Sylvain Veilleux, Samuel Moseley, Neil Gehrels, Stuart Vogel

Proceedings Volume 9147, 914736 (2014) https://doi.org/10.1117/12.2055503

KEYWORDS: Space telescopes, Telescopes, Near infrared, Cameras, Spectroscopes, Optical filters, Optical design, Infrared imaging, Infrared radiation, Photometry

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Proceedings Article | 8 July 2014 Paper

Detector driver systems and photometric estimates for RIMAS

Vicki Toy, Alexander Kutyrev, Eric Lyness, Marius Muench, Frederick Robinson, Gennadiy Lotkin, John Capone, Sylvain Veilleux, Samuel Moseley, Neil Gehrels, Stuart Vogel

Proceedings Volume 9147, 91472W (2014) https://doi.org/10.1117/12.2054767

KEYWORDS: Sensors, Stars, Spectroscopy, Atmospheric modeling, Imaging spectroscopy, Interference (communication), Astronomy, Infrared imaging, Gamma radiation, LabVIEW

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Proceedings Article | 27 September 2013 Paper

The development and analysis of cryogenic optical systems for the rapid infrared imager/spectrometer

John Capone, David Content, Ori Fox, Neil Gehrels, Alexander Kutyrev, Gennadiy Lotkin, Samuel Moseley, Frederick Robinson, Vicki Toy, Sylvain Veilleux, Stuart Vogel

Proceedings Volume 8863, 88630D (2013) https://doi.org/10.1117/12.2023123

KEYWORDS: Cameras, Tolerancing, Spectroscopes, Imaging spectroscopy, Sensors, Optical filters, Infrared radiation, Telescopes, Refractive index, Lens design

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Showing 5 of 11 publications

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