Boston University's high-resolution near-infrared Fabry-Perot spectrometer

Details Boston University's high-resolution near-infrared Fabry-Perot spectrometer Boston University's high-resolution near-infrared Fabry-Perot spectrometer

Feb 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994opten..33..451n&link_type=abstract

Optical Engineering 33(02), 451-456, Brian J. Thompson; Ed.

Physics

5

Scientific paper

To take advantage of the large luminosity-resolution product of the Fabry-Perot interferometer used in tandem with modest-aperture telescopes, a Fabry-Perot interferometer has been developed that is widely adaptable to a variety of extended source observations. The instrument is designed for adaptability across a range of optical and near-IR (NIR) spectral lines from 550 to 1100 nm, which are characterized by a wide range of velocity distributions of the emitting species. The system features a twin-etalon configuration to provide an extended free spectral range and to enhance contrast when observations include bright reflected solar or twilight backgrounds. Although the optical path and all the optical elements of the system are readily accessible, the instrument is ruggedized for transportability and extended remote field operation once it is optically configured. State-of-the-art, modularly adaptable, proven detectors (GaAs photomultipliers, large CCDs, and germanium integrating detectors) are featured to optimize instrument sensitivity. Recently, a series of NIR observations were made at the Millstone Hill Incoherent Scatter Radar Facility, Westford, Massachusetts, in a single- etalon mode.

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