Prof. Devika K. Divakar Profile

Prof. Devika K. Divakar

at Indian Institute of Astrophysics

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Author

Publications (9)

Proceedings Article | 23 August 2024 Poster + Paper

Slitless spectroscopy simulations of Milky Way dwarf satellite galaxies using TMT-WFOS

Devika Divakar, Sivarani Thirupathi, Ramya Sethuram, Jason Fucik, Chuck Steidel, Manjunath Bestha, Prasanna Deshmukh

Proceedings Volume 13099, 130992C (2024) https://doi.org/10.1117/12.3019070

KEYWORDS: Stars, Simulations, Spectroscopy, Satellites, Galactic astronomy

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Proceedings Article | 18 July 2024 Presentation + Paper

SCALES status report

R. Deno Stelter, Andrew Skemer, Stephanie Sallum, Nick MacDonald, Renate Kupke, Christopher Ratliff, Cyril Bourgenot, Gerald Cabak, Michael Gonzales, Cristian Rodriguez, Aaron Hunter, Ravinder Banyal, Thirupathi Sivarani, Michael Fitzgerald, Marc Kassis, Olivier Absil, Carlos Alvarez, Natatsha Batalha, Marc-André Boucher, Timothy Brandt, Zack Briesemeister, Katherine de Kleer, Imke de Pater, William Deich, Devika Dicakar, Étienne Gauvin, Thomas Greene, Armirul Hasan, Philip Hinz, Rebecca Jensen-Clem, Christopher Johnson, Govinda K. V., Isabel Kain, Mackenzie Lach, Jean-Thomas Landry, Michael Liu, Jim Lyke, Kenneth Magone, Eduardo Marin, Raquel Martinez, Dimitri Mawet, Rosalie McGurk, Brittany Miles, Ajin Parkash, Dale Sandford, Ramya Sethuram, Patrick Sheehan, Ji Man Sohn, Jordan Stone, Arun Surya, Hari Varshney, Eric Wang

Proceedings Volume 13096, 1309619 (2024) https://doi.org/10.1117/12.3020806

KEYWORDS: Mirrors, Cryostats, Coronagraphy, Spectrographs, Telescopes, Imaging systems, Exoplanets

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Proceedings Article | 18 July 2024 Poster + Paper

A multi-functional fiber positioning system for extremely large telescopes

Manjunath Bestha, T. Sivarani, Arun Surya, Sudharsan Yadav, Athira Unni, Parvathy M., Devika Divakar, S. Sriram, Ajin Prakash, Amirul Hasan

Proceedings Volume 13096, 1309661 (2024) https://doi.org/10.1117/12.3019098

KEYWORDS: Design, Spectroscopy, Telescopes, Mirrors, Large telescopes, Spectrographs, Astronomical imaging, Dichroic mirrors, Dispersion, Optical fibers

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Proceedings Article | 4 October 2023 Poster + Paper

Atmospheric dispersion corrector for a multi-object spectroscopic mode of HROS-TMT

Manjunath Bestha, Amirul Hasan, Devika Divakar, Arun Surya, S. Sriram, T. Sivarani, Ajin Prakash, Parvathy M., Sudharshan Yadav

Proceedings Volume 12677, 126770Q (2023) https://doi.org/10.1117/12.2677192

KEYWORDS: Multiplexing, Mechanical positioning systems, Dispersion, Telescopes, Mirrors, Thirty Meter Telescope, Spectroscopy, Prisms, Design and modelling, Tolerancing, Spectroscopic atmospheric monitoring techniques

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Proceedings Article | 29 August 2022 Presentation + Paper

Design of SCALES: a 2-5 micron coronagraphic integral field spectrograph for Keck Observatory

Andrew Skemer, R. Deno Stelter, Stephanie Sallum, Nicholas MacDonald, Renate Kupke, Christopher Ratliff, Ravinder Banyal, Amirul Hasan, Hari Mohan Varshney, Arun Surya, Ajin Prakaesh, Sivarani Thirupathi, Ramya Sethuram, Govinda K.V., Michael Fitzgerald, Eric Wang, Marc Kassis, Olivier Absil, Carlos Alvarez, Natasha Batalha, Marc-André Boucher, Cyril Bourgenot, Timothy Brandt, Zackery Briesemeister, Katherine de Kleer, Imke de Pater, William Deich, Devika Divakar, Guillaume Filion, Étienne Gauvin, Michael Gonzales, Thomas Greene, Philip Hinz, Rebecca Jensen-Clem, Christopher Johnson, Isabel Kain, Gabriel Kruglikov, Mackenzie Lach, Jean-Thomas Landry, Jialin Li, Michael Liu, James Lyke, Kenneth Magnone, Eduardo Marin, Emily Martin, Raquel Martinez, Dimitri Mawet, Brittany Miles, Dale Sandford, Patrick Sheehan, Ji Man Sohn, Jordan Stone

Proceedings Volume 12184, 121840I (2022) https://doi.org/10.1117/12.2630577

KEYWORDS: Exoplanets, Spectrographs, Planets, Sensors, Coronagraphy, Imaging systems, Adaptive optics, Mirrors, Spectroscopy

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Proceedings Article | 29 August 2022 Presentation + Paper

Design and development of WFOS, the Wide-Field Optical Spectrograph for the Thirty Meter Telescope

Charles Steidel, Eric Peng, Jason Fucik, Reston Nash, Stephen Kaye, George Jacoby, Bernard Delabre, Ramya Sethuram, Devika Divakar, Hari Mohan Varshney, Thirupathi Sivarani, Fumihiro Uraguchi, Shinobu Ozaki, Hangxin Ji, Tao LV, Kent Chiu, Qinfeng Zhu, David Andersen, John Miles, Davide Lasi

Proceedings Volume 12184, 1218423 (2022) https://doi.org/10.1117/12.2629464

KEYWORDS: Cameras, Telescopes, Sensors, Diffraction gratings, Spectrographs, Thirty Meter Telescope, Imaging systems, Mirrors, Collimators, Optical instrument design

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Proceedings Article | 10 July 2018 Paper

Flexure compensation simulation tool for TMT-WFOS Spectrograph

Arun Surya, Matthew Radovan, Sivarani Thirupathi, S. Sriram, Devika Divakar, Jason Fucik

Proceedings Volume 10705, 107051G (2018) https://doi.org/10.1117/12.2312155

KEYWORDS: Optical components, Zemax, Spectrographs, Monte Carlo methods, Device simulation, Optical design, Spectroscopy

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Proceedings Article | 9 July 2018 Presentation

The wide field optical spectrograph (WFOS) for TMT: fiber-WFOS optical design (Conference Presentation)

Renate Kupke, Hangxin Ji, Sriram Padmanaban Nadar, Devika Divakar, Luc Gilles

Proceedings Volume 10702, 1070221 (2018) https://doi.org/10.1117/12.2313674

KEYWORDS: Spectrographs, Optical design, Spectral resolution, Channel projecting optics, Astronomical imaging, Optical fibers, Collimators, Cameras, Multiplexing, Adaptive optics

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Proceedings Article | 9 July 2018 Presentation

WFOS instrument trade study: slicer vs. fiber instrument concept designs and results (Conference Presentation)

Kevin Bundy, Maureen Savage, Renate Kupke, Nicholas MacDonald, Kyle Westfall, Matthew Radovan, Zheng Cai, Brian Digiorgio, Richard Dekany, Devika Divakar, Jason Fucik, Hangxin Ji, Satoshi Miyazaki, Shinobu Ozaki, Andrew Phillips, Namrata Roy, Roger Smith, Arun Surya, S. Sriram, Sivarani Thirupathi, Toshihiro Tsuzuki

Proceedings Volume 10702, 1070220 (2018) https://doi.org/10.1117/12.2312283

KEYWORDS: Spectrographs, Thirty Meter Telescope, Multiplexing, Robotic systems, Spectroscopy, Astronomical imaging, Robotics, Fiber couplers, Telescopes

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Showing 5 of 9 publications

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