A fast Fourier transform spectrometer design for submillimeter site testing

Miguel Velázquez; Daniel Ferrusca; David H. Hughes

doi:10.1117/12.684617

27 June 2006 A fast Fourier transform spectrometer design for submillimeter site testing

Miguel Velázquez, Daniel Ferrusca, David H. Hughes

Proceedings Volume 6275, Millimeter and Submillimeter Detectors and Instrumentation for Astronomy III; 627521 (2006) https://doi.org/10.1117/12.684617
Event: SPIE Astronomical Telescopes + Instrumentation, 2006, Orlando, Florida , United States

Abstract

We report the design of a sub-millimeter Fourier Transform Spectrometer of the Martin Puplett type (FTS-MP here after). The instrument will be installed on Sierra La Negra, and will operate from ~215 GHz to 1 THz approximately with a moderate resolution of 500 MHz. The main motivations of the work are the development of basic instrumentation for characterizing the LMT site (Large Millimeter Telescope) as well as optical components and to provide a portable broadband system for site testing. The collected data will be used for transmission model validation. The data also will influence the design of the new generation of sub-millimeter and millimeter cameras for the LMT. In the present work we emphasize cryogenic detector system design (bolometer detector and coupling optics) and the optical system layout for the FTS-MP. Test measurements in the laboratory are reported in this work.

Citation Download Citation

Miguel Velázquez, Daniel Ferrusca, and David H. Hughes "A fast Fourier transform spectrometer design for submillimeter site testing", Proc. SPIE 6275, Millimeter and Submillimeter Detectors and Instrumentation for Astronomy III, 627521 (27 June 2006); https://doi.org/10.1117/12.684617

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