25 January 2000 Narrow-band tunable source of submillimeter waves
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Proceedings Volume 4063, 13th Symposium and School on High-Resolution Molecular Spectroscopy; (2000) https://doi.org/10.1117/12.375395
Event: 13th Symposium and School on High-Resolution Molecular Spectroscopy, 1999, Tomsk, Russian Federation
Abstract
Phase-matched difference-mixing of the frequency tunable CO2 lasers in three nonlinear crystals is considered to generate a tunable submillimeter radiation. Optical properties of ZnGeP2, AgGaSe2, and new promising nonlinear mixed crystals like AgGaxIn1-xSe2 in middle IR and FIR spectral ranges have been investigated. The coefficients of Sellmeier dispersion equations for AgGaxIn1-xSe2 and AgGaSe2 for IR and those for ZnGeP2 for FIR have been determined. Phase- matching curves and phase-matching angular widths for both direct and backward waves have been calculated. A principle possibility of application of the emission converted is shown to control some atmospheric pollutants.
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Pavel P. Geiko, Pavel P. Geiko, Yuri M. Andreev, Yuri M. Andreev, Aleksander I. Gusamov, Aleksander I. Gusamov, } "Narrow-band tunable source of submillimeter waves", Proc. SPIE 4063, 13th Symposium and School on High-Resolution Molecular Spectroscopy, (25 January 2000); doi: 10.1117/12.375395; https://doi.org/10.1117/12.375395
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