Infrared evanescent-absorption spectroscopy with chalcogenide glass fibers
نویسندگان
چکیده
منابع مشابه
Mid-infrared nonlinear absorption in As2S3 chalcogenide glass
We report mid-infrared (MIR) nonlinear absorption in As2S3 glasses which results from two-photon excitation of valence electron to the Urbach extension followed by strong linear absorption of excited states. The measured MIR nonlinear absorption can be 3 to 4 orders of magnitude stronger than the two-photon absorption in the near-infrared for similar laser intensities and does not result from c...
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ژورنال
عنوان ژورنال: Applied Optics
سال: 1994
ISSN: 0003-6935,1539-4522
DOI: 10.1364/ao.33.006315