Qualitative and quantitative test of digital micromirror device for next generation UV multi-object spectroscopy

Unni C. Vishnu; S. Sriram; Vineeth Valsan; Annapurni Subramaniam

doi:10.1117/12.2576340

13 December 2020 Qualitative and quantitative test of digital micromirror device for next generation UV multi-object spectroscopy

Unni C. Vishnu, S. Sriram, Vineeth Valsan, Annapurni Subramaniam

Author Affiliations +

Proceedings Volume 11444, Space Telescopes and Instrumentation 2020: Ultraviolet to Gamma Ray; 114447A (2020) https://doi.org/10.1117/12.2576340
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only

Conference Poster

Abstract

The coming decade in astronomy focuses on large wide field imaging and spectroscopic surveys. No wide field imaging facility extends to the UV region, which represents an important window into a wide variety of astrophysical problems. Also, spectroscopy would be essential to understand the physical and chemical properties of several stars, star forming regions and galaxies. Multi object spectroscopy (MOS) would be an efficient way to obtain these parameters for a large number of objects at a much shorter timescale. Digital Micromirror Device (DMD) acts as a programmable slit mask and can be used to achieve this goal in an MOS. This paper discusses different ground tests conducted on DMD to be used for the above said application. Numerical simulations for the diffraction effects on DMD is also carried out and the results are shared in this paper.

Conference Presentation

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Unni C. Vishnu, S. Sriram, Vineeth Valsan, and Annapurni Subramaniam "Qualitative and quantitative test of digital micromirror device for next generation UV multi-object spectroscopy", Proc. SPIE 11444, Space Telescopes and Instrumentation 2020: Ultraviolet to Gamma Ray, 114447A (13 December 2020); https://doi.org/10.1117/12.2576340

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