Integrating Sphere for the Infrared
- 1 June 1966
- journal article
- Published by Optica Publishing Group in Applied Optics
- Vol. 5 (6) , 1035-1037
- https://doi.org/10.1364/ao.5.001035
Abstract
An integrating sphere of simple construction has been developed for the ir. It has a high efficiency that is not materially affected by aging processes. Experimental measurements of the relative efficiency of this sphere have been made for the wavelength range from 1 μ to 2.6 μ. These data agree with theoretical predictions. It was also predicted that the efficiency of the sphere would increase from 2 μ through to the millimeter wavelength range. The measurements show the ir sphere to have a higher efficiency(2.5 times higher at 2.6 μ) than the conventional MgO-coated integrating sphere.Keywords
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