Prof. Sylvain Veilleux Profile

Prof. Sylvain Veilleux

at Univ of Maryland College Park

SPIE Involvement:

Author

Publications (12)

Proceedings Article | 21 August 2024 Presentation + Paper

The Line Emission Mapper (LEM) probe mission concept

R. Kraft, Á. Bogdán, J. ZuHone, J. Adams, J. Alvarado-Gómez, C. Argiroffi, M. Ayromlou, M. Azadi, S. Bandler, M. Barbera, A. Bhardwaj, V. Biffi, D. Bodewits, E. Boettcher, B. Branham, J. Burchett, D. Burke, J. Cann, J. Carter, D. Castro, P. Chakraborty, K. Chan, S. Chen, E. Churazov, K. Coderre, M. Corcoran, R. Cumbee, S. DePalo, K. Dolag, M. Donahue, W. Doriese, J. Drake, W. Dunn, M. Eckart, D. Eckert, S. Ettori, Y. Ezoe, C. Feldman, E. Flaccomio, W. Forman, M. Galeazzi, A. Gall, C. Garraffo, M. Gonzalez, N. Grosso, J. Hartley, N. Hell, L. Hernquist, E. Hodges-Kluck, J. Houston, S. Hull, N. Islam, P. Janas, F. Jennings, C. Jones, P. Kaaret, H. Kanner, M. Karovska, V. Kashyap, P. Kavanagh, R. Kelley, I. Khabibullin, C. Kilbourne, C.-G. Kim, D. Koutroumpa, O. Kovács, K. Kuntz, S.-H. Lee, M. Leutenegger, T. Linn, S. Lotti, M. Markevitch, K. Martin, L. May, D. McCammon, S. McEntee, S. Mei, F. Mernier, M. Miceli, J. Miller, M. Mirakhor, K. Monsch, Y. Nazé, D. Nelson, A. Nordt, A. Ogorzalek, J. Olson, S. Orlando, E. Osborne, L. Oskinova, D. Patnaude, R. Pfeifle, C. Pinto, P. Plucinsky, G. Ponti, D. Porquet, F. Porter, D. Préle, S. Ramm, S. Randall, E. Rasia, M. Rau, S. Richardson, K. Sakai, A. Sarkar, G. Schellenberger, S. Sciortino, J. Schaye, A. Simionescu, S. Smith, M. Sobolewska, J. Steiner, J. Stern, Y. Su, M. Sun, N. Truong, E. Ursino, M. Valentini, S. Veilleux, S. Vladutescu-Zopp, M. Vogelsberger, N. Wakeham, S. Walker, Q. Wang, B. Wargelin, K. Weaver, J. Werk, N. Werner, S. Wolk, C. Zhang, W. Zhang, I. Zhuravleva

Proceedings Volume 13093, 1309327 (2024) https://doi.org/10.1117/12.3019969

KEYWORDS: X-rays, Galactic astronomy, Stars, Bubbles, Spectral resolution, Iron, Physics, Spectroscopy, Metals, Plasma

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The Line Emission Mapper (LEM) is a Probe mission concept developed in response to NASA’s Astrophysics Probe Explorer (APEX) Announcement of Opportunity. LEM has a single science instrument composed of a large-area, wide-field X-ray optic and a microcalorimeter X-ray imaging spectrometer in the focal plane. LEM is optimized to observe low-surface-brightness diffuse X-ray emission over a 30′ equivalent diameter field of view with 1.3 and 2.5 eV spectral resolution in the 0.2−2.0 keV band. Our primary scientific objective is to map the thermal, kinetic, and elemental properties of the diffuse gas in the extended X-ray halos of galaxies, the outskirts of galaxy clusters, the filamentary structures between these clusters, the Milky Way star-formation regions, the Galactic halo, and supernova remnants in the Milky Way and Local Group. The combination of a wide-field optic with 18′′ angular resolution end-to-end and a microcalorimeter array with 1.3 eV spectral resolution in a 5′ × 5′ inner array (2.5 eV outside of that) offers unprecedented sensitivity to extended low-surface-brightness X-ray emission. This allows us to study feedback processes, gas dynamics, and metal enrichment over seven orders of magnitude in spatial scales, from parsecs to tens of megaparsecs. LEM will spend approximately 11% of its five-year prime science mission performing an All-Sky Survey, the first all-sky X-ray survey at high spectral resolution. The remainder of the five-year science mission will be divided between directed science (30%) and competed General Observer science (70%). LEM and the NewAthena/XIFU are highly complementary, with LEM’s optimization for soft X-rays, large FOV, 1.3 eV spectral resolution, and large grasp balancing the NewAthena/X-IFU’s broadband sensitivity, large effective area, and unprecedented spectral resolving power at 6 keV. In this presentation, we will provide an overview of the mission architecture, the directed science driving the mission design, and the broad scope these capabilities offer to the entire astrophysics community.

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 12 publications

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