Abstract

A new design of the grille spectrometer allows its use for measurements of thermal ir emissions. The grilles are made of self-supporting etched metal foil, and the curved chessboard pattern allows optical chopping of one spectral element at a time by oscillation of the exit grille. Although the effective noise level obtained is as low as 1 erg sec⁻¹ cm⁻² sr⁻¹ cm⁻¹ for an integration time of 448 ms, the specific detectivity of the thermister bolometer appropriate for the large throughput of this instrument is much less than in small throughput versions, and a different detector or detector system will be required to achieve optimum performance.

© 1969 Optical Society of America

The Circularly Symmetric Grille Spectrometer

B. A. Tinsley
Appl. Opt. 5(7) 1139-1145 (1966)

New grilles for Girard spectrometers

Feodor A. Murzin, Tatiana S. Murzina, and Victor B. Shlishevsky
Appl. Opt. 24(21) 3625-3630 (1985)

Performance of a Spectrometer for Measuring the Earth’s Radiance near 4.3 μ

P. W. Schaper and J. H. Shaw
Appl. Opt. 9(4) 924-928 (1970)

Measured and Calculated Earth–Atmosphere Radiance in the 8–14-μ Window as a Function of Altitude

M. Griggs
Appl. Opt. 8(1) 171-177 (1969)

A Rapid-Scan Spectrometer for Scanning 2000 Å–15 μm in 3 sec

H. A. Kruegle and S. A. Dolin
Appl. Opt. 8(10) 2107-2115 (1969)