Ms. Sowmya Hassan Krishna Profile

Sowmya Hassan Krishna

at Australian National Univ

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Author

Publications (3)

Proceedings Article | 30 August 2022 Presentation + Paper

Laser modulation to reduce the dependence on natural guide star for focus sensing: simulations and preliminary results.

Sowmya Hassan Krishna, Noelia Martinez Rey, Francois Rigaut, John Hart, Lyle Roberts, Celine d'Orgeville

Proceedings Volume 12185, 121851G (2022) https://doi.org/10.1117/12.2627080

KEYWORDS: Modulation, Telescopes, Sodium, Bragg cells, Adaptive optics, Numerical simulations, Photodetectors, Sensors, Photodiodes, Modulators, Laser guide stars, Mesosphere, Sodium guide stars, Large telescopes, Field programmable gate arrays

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SPIE Journal Paper | 12 May 2022

Mesospheric sodium layer variations with continuous laser modulation and effects on adaptive optics system

Sowmya Hassan Krishna, Noelia Martinez Rey, Francois Rigaut, Lyle Roberts, Celine d'Orgeville

JATIS, Vol. 8, Issue 02, 029002, (May 2022) https://doi.org/10.1117/12.10.1117/1.JATIS.8.2.029002

KEYWORDS: Sodium, Modulation, Adaptive optics, Telescopes, LIDAR, Temporal resolution, Spatial resolution, Photons, Numerical simulations, Large telescopes

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Proceedings Article | 13 December 2020 Presentation + Paper

Australia’s first laser guide star: design and telescope integration at Mount Stromlo Observatory

Noelia Martinez, Céline d'Orgeville, David Ashworth, Michael Copeland, Antony Galla, Doris Grosse, Sowmya Hassan Krishna, Marcus Lingham, Ian Price, Tony Travouillon, Greg Fetzer, Steve Rako, Cory Baumgarten, James Webb, Mark Blundell, Yue Gao, Andrew Gray, Ian Ritchie, Craig Smith, Yanjie Wang, Olivia Byrd, Robert Johnson

Proceedings Volume 11448, 114481U (2020) https://doi.org/10.1117/12.2563374

KEYWORDS: Laser guide stars, Observatories, Telescopes, Adaptive optics, Semiconductor lasers, Imaging systems, Laser systems engineering, Laser development, Projection systems, Optical instrument design

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