Detection of Room-Temperature Blackbody Radiation by Parametric Upconversion
- 1 August 1971
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 19 (3) , 68-70
- https://doi.org/10.1063/1.1653825
Abstract
Room‐temperature thermal (blackbody) radiation has been detected via parametric‐frequency upconversion. Thermal radiation was mixed with the output of a Nd:YAG laser in proustite. The wavelength of the radiation upconverted was varied from 6.5 to 12.5 μ by rotating the proustite 20 deg. The spectral width of the blackbody radiation accepted by the upconverter was approximately 0.7 μ.Keywords
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