Qualitative and Quantitative test of Digital Micromirror Device for next generation UV Multi-Object Spectroscopy

摘要

The coming dorado in astronomy focuses on large wide field imaging and speciroscopic surveys. No wide field imaging facility extends to the UV region, which represents an important window into a wide variety of astro-physical problems. Also, spectroscopy would be essential to understand the physical and chemical properties of several stars, star forming regions and galaxies. Multi object spectrosropy (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.