Far-infrared step-tunable coherent radiation source: 70 μm to 2 mm
- 15 December 1973
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 23 (12), 679-681
- https://doi.org/10.1063/1.1654788
Abstract
Noncollinear mixing of radiation from CO2 TEA lasers has been used to generate phase‐matched far‐infrared difference‐frequency radiation in GaAs. The wavelength of the far‐infrared radiation was tuned from [inverted lazy s] 70 μm to 2 mm in small steps by selecting the frequencies of the two CO2 lasers by means of intracavity diffraction gratings. A theoretical analysis of the two‐dimensional phase matching is presented.Keywords
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