Efficient up-conversion of 10.6-μm radiation into the green spectral range
- 15 July 1977
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 31 (2), 99-101
- https://doi.org/10.1063/1.89579
Abstract
Conversion of 10.6‐μm laser radiation into the spectral region of almost optimal photomultiplier performance is realized by nonlinear mixing of the infrared signal with a dye laser. Quantum conversion efficiencies exceeding 40% are obtained. This order‐of‐magnitude improvement of the up‐converter efficiency was achieved with a AgGaS2 crystal of only 5 mm length, because the noncritical collinear 90° type‐I phase‐matching geometry was realized.Keywords
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