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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/4088

Title: Photoinduced transparency of effective three-photon absorption coefficient for femtosecond laser pulses in Ge16As29Se55 thin films
Authors: Barik, A.R.
Adarsh, K.V.
Naik, Ramakanta
Sandeep, Suchand C.S.
Philip, Reji
Zhao, Donghui
Jain, Himanshu
Keywords: Chalcogenide Glass
Semiconductors
Issue Date: May-2011
Publisher: American Institute of Physics
Citation: Applied Physics Letters, 2011, Vol.98, p201111
Abstract: We report a dramatic change in effective three-photon absorption coefficient of amorphous Ge16As29Se55 thin films, when its optical band gap decreases by 10 meV with 532 nm light illumination. This large change provides valuable information on the higher excited states, which are otherwise inaccessible via normal optical absorption. The results also indicate that photodarkening in chalcogenide glasses can serve as an effective tool to tune the multiphoton absorption in a rather simple way.
Description: Open Access.
URI: http://hdl.handle.net/2289/4088
ISSN: 0003-6951
1077-3118 (online)
Alternative Location: http://adsabs.harvard.edu/abs/2011ApPhL..98t1111B
http://dx.doi.org/10.1063/1.3591978
Copyright: 2011 American Institute of Physics
Appears in Collections:Research Papers (LAMP)

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