Abstract
Tangential near-noncritical phase matching is reported for upconversion in silver thiogallate (AgGaS2) using a dye laser as pump. A large acceptance angle for noncollinearity as desirable from a device view point is realised. Weak temperature tunability is also exploited to realise noncriticality.
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Bhar, G.C., Chatterjee, U., Datta, P.K. et al. Noncritical detection of tunable CO2 laser radiation into the green by upconversion in silver thio-gallate. Appl. Phys. B 53, 19–22 (1991). https://doi.org/10.1007/BF00325477
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DOI: https://doi.org/10.1007/BF00325477