Integrating Sphere Performance In The 0.3 TO 8 /um Spectral Region

T. P. Condron; R. P. Heinisch; D. J. Lovell

doi:10.1117/12.954443

20 January 1976 Integrating Sphere Performance In The 0.3 TO 8 /μm Spectral Region

T. P. Condron, R. P. Heinisch, D. J. Lovell

Proceedings Volume 0062, Modern Utilization of Infrared Technology I; (1976) https://doi.org/10.1117/12.954443
Event: 19th Annual Technical Symposium, 1975, San Diego, United States

Abstract

Two integrating spheres have been developed to act as in interface between a monochromator and instru-ments under calibration. The spheres are designed to provide a diffuse, extended source and attenuate the signal sufficiently so as not to saturate sensitive instruments. One sphere is coated with a BaSO₄ paint which provides a diffuse, highly reflecting surface in the 0.3 to 1.5μm spectral region. This sphere is operated at ambient temperatures. The second sphere is peened to create a diffuse surface and then is coated with copper to obtain a high reflectivity fran 1.5 to 8μm. The latter sphere is cooled to liquid nitrogen temperatures to eliminate self radiation in the spectral region of interest. Comparisons between observed spectral performance and theoretically predicted results are presented, and the gonianetric characteristics are described.

Citation Download Citation

T. P. Condron, R. P. Heinisch, and D. J. Lovell "Integrating Sphere Performance In The 0.3 TO 8 /μm Spectral Region", Proc. SPIE 0062, Modern Utilization of Infrared Technology I, (20 January 1976); https://doi.org/10.1117/12.954443

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