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SAFARI optical system architecture and design concept

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Pastor Sempere, Carmen and Jellema, Willem and Zuluaga Ramírez, Pablo and Arrazola, David and Fernández Rodríguez, M. and Belenguer Dávila, Tomás and González Fernández, Luis M. and Audley, Michael D. and Evers, Jaap and Eggens, Martin and Torres Redondo, Josefina and Najarro, Francisco and Roelfsema, Peter (2016) SAFARI optical system architecture and design concept. In Proceedings of SPIE, Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave. Proceedings of SPIE, 99043 (99043). SPIE, 99043U. ISBN 978-151060187-1

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Official URL: http://dx.doi.org/10.1117/12.2232786



Abstract

SpicA FAR infrared Instrument, SAFARI, is one of the instruments planned for the SPICA mission. The SPICA mission is the next great leap forward in space-based far-infrared astronomy and will study the evolution of galaxies, stars and planetary systems. SPICA will utilize a deeply cooled 2.5m-class telescope, provided by European industry, to realize zodiacal background limited performance, and high spatial resolution. The instrument SAFARI is a cryogenic grating-based point source spectrometer working in the wavelength domain 34 to 230 μm, providing spectral resolving power from 300 to at least 2000. The instrument shall provide low and high resolution spectroscopy in four spectral bands. Low Resolution mode is the native instrument mode, while the high Resolution mode is achieved by means of a Martin-Pupplet interferometer. The optical system is all-reflective and consists of three main modules; an input optics module, followed by the Band and Mode Distributing Optics and the grating Modules. The instrument utilizes Nyquist sampled filled linear arrays of very sensitive TES detectors. The work presented in this paper describes the optical design architecture and design concept compatible with the current instrument performance and volume design drivers.


Item Type:Book Section
Additional Information:

Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave; Edinburgh; United Kingdom; 26 June 2016 through 1 July 2016
Copyright 2016. Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
ISSN: 0277-786X

Uncontrolled Keywords:Far infrared; Grating spectrometer; Optical design; SPICA mission
Subjects:Sciences > Physics > Astrophysics
Medical sciences > Optics > Physical optics
ID Code:40646
Deposited On:10 Jan 2017 09:06
Last Modified:11 Jan 2017 11:22

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