Hanna, D.C. and Turner, A.J.
Nonlinear absorption measurements in proustite(Ag3AsS3) and CdSe
Optical and Quantum Electronics, 8, (3), . (doi:10.1007/BF00620202).
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Nonlinear absorption has been observed in proustite at 694 nm; however at 1.06µm, in contrast to previous results, no nonlinear absorption could be detected at intensities up to the damage threshold. Measurements on CdSe at 1.06µm and 1.32µm show that the nonlinear absorption mechanism is two photon absorption followed by absorption by the photo-induced carriers. The implications of this for nonlinear mixing applications are discussed.
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