@inproceedings{0c1582bac47f41539f693d2d027241c3,
title = "DOTIFS: Fore-optics and calibration unit design",
abstract = "We present fore-optics and calibration unit design of Devasthal Optical Telescope Integral Field Spectrograph (DOTIFS). DOTIFS fore-optics is designed to modify the focal ratio of the light and to match its plate scale to the physical size of Integral Field Units (IFUs). The fore-optics also delivers a telecentric beam to the IFUs on the telescope focal plane. There is a calibration unit part of which is combined with the fore-optics to have a light and compact system. We use Xenon-arc lamp as a continuum source and Krypton/Mercury-Neon lamps as wavelength calibration sources. Fore-optics and calibration unit shares two optical lenses to maintain compactness of the overall subsystem. Here we present optical and opto-mechanical design of the calibration unit and fore-optics as well as calibration scheme of DOTIFS.",
keywords = "Astronomical instrumentation, Calibration unit, Fore-optics, Integral field unit, Multi-IFU, Optical fiber",
author = "Haeun Chung and Ramaprakash, {A. N.} and Pravin Khodade and Rajarshi, {Chaitanya V.} and Sabyasachi Chattopadhyay and Chordia, {Pravin A.} and Amitesh Omar and Changbom Park",
note = "Publisher Copyright: {\textcopyright} 2018 SPIE.; Ground-based and Airborne Instrumentation for Astronomy VII 2018 ; Conference date: 10-06-2018 Through 14-06-2018",
year = "2018",
doi = "10.1117/12.2312394",
language = "English (US)",
isbn = "9781510619579",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Luc Simard and Luc Simard and Evans, {Christopher J.} and Hideki Takami",
booktitle = "Ground-based and Airborne Instrumentation for Astronomy VII",
}