TESS - A high-luminosity high-resolution twin-etalon scanning spectrometer

Details TESS - A high-luminosity high-resolution twin-etalon scanning spectrometer TESS - A high-luminosity high-resolution twin-etalon scanning spectrometer

Nov 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apopt..20.3687h&link_type=abstract

Applied Optics, vol. 20, Nov. 1, 1981, p. 3687, 3688.

Physics

Optics

10

Fabry-Perot Spectrometers, High Resolution, Spectral Resolution, Spectrometers, Luminous Intensity, Optical Scanners, Piezoelectricity, Power Gain

Scientific paper

An analysis and the operation of a piezoelectric, twin-etalon scanned spectrometer (TESS) is reviewed. TESS provides high luminosity and large gain relative to the capabilities of single aperture Fabry-Perot spectrometers. Limiting factors are noted to exist in material inhomogeneities, the scanning scheme, field-of-view, etc. The luminosity gain, which allows measurement of faint sources with an arbitrary time resolution, occurs at the expense of the field-of-view. The angular spread of the last fringe (21 st) of the TESS spectrum is 3.4 deg. TESS angular coverage can be matched or limited, with respect to the source being observed, and is independent of the resolution.

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