Filters for ν2 band of CO2: monitoring and control of layer deposition
Applied Optics, Vol. 15, Issue 11, pp. 2736-2745 (1976)
http://dx.doi.org/10.1364/AO.15.002736
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Abstract
Two types of multilayer interference filter are required for temperature sounding the earth’s atmosphere. In relation to the 668-cm-1 ν2 band of CO2 these are narrowband (4 cm-1 wide for the Q branch, 10 cm-1 for the R branch) or isolation (~60 cm-1 wide for the complete center of the band). Difficulty in manufacturing the filters for NIMBUS-SCR and -PMR spaceflight has indicated a need for improvement in the monitoring and control of the deposition of layers, and the paper describes a realization of this. The consequent effect on filter performance (utilizing a particular combination of layer materials) is described.
Citation
C. S. Evans, R. Hunneman, J. S. Seeley, and A. Whatley, "Filters for ν2 band of CO2: monitoring and control of layer deposition," Appl. Opt. 15, 2736-2745 (1976)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-15-11-2736
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