Characterizing the system performance of FIFI LS: The field-imaging far-infrared line spectrometer for SOFIA

W. Raab; A. Poglitsch; R. Klein; R. Hoenle; M. Schweizer; W. Viehhauser; N. Geis; R. Genzel; L. W. Looney; M. Hamidouche; T. Henning; E. E. Haller

doi:10.1117/12.671483

Characterizing the system performance of FIFI LS: The field-imaging far-infrared line spectrometer for SOFIA

W. Raab, A. Poglitsch, R. Klein, R. Hoenle, M. Schweizer, W. Viehhauser, N. Geis, R. Genzel, L. W. Looney, M. Hamidouche, T. Henning, E. E. Haller

Astronomy

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

FIFI LS is a Field-Imaging Line Spectrometer designed for the SOFIA airborne observatory. The instrument will operate in the far infrared wavelength range between 42 to 210 microns. Two spectrometer bands from 42 - 110 microns ('blue' channel) and 110 - 210 microns ('red' channel) allow simultaneous and independent diffraction limited 3D imaging over a field of view of 6 × 6 and 12 × 12 arcseconds respectively. Both spectrometer channels use Littrow mounted diffraction gratings, a set of anamorphic collimators, and a reflective integral field unit. Two large scale 25 × 16 pixel Ge:Ga detector arrays are utilized, axially stressed in the red channel and only slightly stressed in the blue channel. The spectral resolution of the instrument varies between R = 1400 to 6500 depending on wavelength. The sensitivity of the instrument will allow background limited performance over the entire wavelength range. We present test results for the components in the optical path of FIFI LS including grating efficiencies, filter characteristics, detector performance, and optical throughput. Based on our measurements we characterized and optimized the overall system performance to maximize observing efficiency - one of the major instrument design criteria.

Original language	English (US)
Title of host publication	Ground-based and Airborne Instrumentation for Astronomy
DOIs	https://doi.org/10.1117/12.671483
State	Published - 2006
Event	Ground-based and Airborne Instrumentation for Astronomy - Orlando, FL, United States Duration: May 25 2006 → May 29 2006

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	6269 I
ISSN (Print)	0277-786X

Other

Other	Ground-based and Airborne Instrumentation for Astronomy
Country/Territory	United States
City	Orlando, FL
Period	5/25/06 → 5/29/06

Keywords

FIFI
FIFI LS
Far-Infrared
Integral Field Imaging
SOFIA
Spectrometer

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

Online availability

10.1117/12.671483

Library availability

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Raab, W., Poglitsch, A., Klein, R., Hoenle, R., Schweizer, M., Viehhauser, W., Geis, N., Genzel, R., Looney, L. W., Hamidouche, M., Henning, T., & Haller, E. E. (2006). Characterizing the system performance of FIFI LS: The field-imaging far-infrared line spectrometer for SOFIA. In Ground-based and Airborne Instrumentation for Astronomy Article 62691G (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6269 I). https://doi.org/10.1117/12.671483

Characterizing the system performance of FIFI LS: The field-imaging far-infrared line spectrometer for SOFIA. / Raab, W.; Poglitsch, A.; Klein, R. et al.
Ground-based and Airborne Instrumentation for Astronomy. 2006. 62691G (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6269 I).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Raab, W, Poglitsch, A, Klein, R, Hoenle, R, Schweizer, M, Viehhauser, W, Geis, N, Genzel, R, Looney, LW, Hamidouche, M, Henning, T & Haller, EE 2006, Characterizing the system performance of FIFI LS: The field-imaging far-infrared line spectrometer for SOFIA. in Ground-based and Airborne Instrumentation for Astronomy., 62691G, Proceedings of SPIE - The International Society for Optical Engineering, vol. 6269 I, Ground-based and Airborne Instrumentation for Astronomy, Orlando, FL, United States, 5/25/06. https://doi.org/10.1117/12.671483

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abstract = "FIFI LS is a Field-Imaging Line Spectrometer designed for the SOFIA airborne observatory. The instrument will operate in the far infrared wavelength range between 42 to 210 microns. Two spectrometer bands from 42 - 110 microns ('blue' channel) and 110 - 210 microns ('red' channel) allow simultaneous and independent diffraction limited 3D imaging over a field of view of 6 × 6 and 12 × 12 arcseconds respectively. Both spectrometer channels use Littrow mounted diffraction gratings, a set of anamorphic collimators, and a reflective integral field unit. Two large scale 25 × 16 pixel Ge:Ga detector arrays are utilized, axially stressed in the red channel and only slightly stressed in the blue channel. The spectral resolution of the instrument varies between R = 1400 to 6500 depending on wavelength. The sensitivity of the instrument will allow background limited performance over the entire wavelength range. We present test results for the components in the optical path of FIFI LS including grating efficiencies, filter characteristics, detector performance, and optical throughput. Based on our measurements we characterized and optimized the overall system performance to maximize observing efficiency - one of the major instrument design criteria.",

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AU - Schweizer, M.

AU - Viehhauser, W.

AU - Geis, N.

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AB - FIFI LS is a Field-Imaging Line Spectrometer designed for the SOFIA airborne observatory. The instrument will operate in the far infrared wavelength range between 42 to 210 microns. Two spectrometer bands from 42 - 110 microns ('blue' channel) and 110 - 210 microns ('red' channel) allow simultaneous and independent diffraction limited 3D imaging over a field of view of 6 × 6 and 12 × 12 arcseconds respectively. Both spectrometer channels use Littrow mounted diffraction gratings, a set of anamorphic collimators, and a reflective integral field unit. Two large scale 25 × 16 pixel Ge:Ga detector arrays are utilized, axially stressed in the red channel and only slightly stressed in the blue channel. The spectral resolution of the instrument varies between R = 1400 to 6500 depending on wavelength. The sensitivity of the instrument will allow background limited performance over the entire wavelength range. We present test results for the components in the optical path of FIFI LS including grating efficiencies, filter characteristics, detector performance, and optical throughput. Based on our measurements we characterized and optimized the overall system performance to maximize observing efficiency - one of the major instrument design criteria.

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KW - Spectrometer

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Characterizing the system performance of FIFI LS: The field-imaging far-infrared line spectrometer for SOFIA

Abstract

Publication series

Other

Keywords

ASJC Scopus subject areas

Online availability

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