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Nonlinear photoresponse in II-VI-based nanocomposite thin films: a semiquantitative four-level model

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Title Nonlinear photoresponse in II-VI-based nanocomposite thin films: a semiquantitative four-level model
 
Creator VASA, P
SINGH, BP
AYYUB, P
 
Subject semiconductor-doped glasses
cds-zno
photoluminescence
states
 
Description We have measured the one-photon, resonant nonlinear optical properties of sputter-deposited nanocomposite CdS:ZnO thin films with a characteristic grain size of about 3 nm. These films show a completely reversible photodarkening at low fluences as well as fast recovery, making them useful for optical limiting applications. The observed photoresponse can be ascribed to excited-state absorption and is in good agreement with a semi-quantitative, four-level model proposed by us. (c) 2006 Optical Society of America.
 
Publisher OPTICAL SOC AMER
 
Date 2011-08-19T10:53:45Z
2011-12-26T12:56:12Z
2011-12-27T05:44:31Z
2011-08-19T10:53:45Z
2011-12-26T12:56:12Z
2011-12-27T05:44:31Z
2006
 
Type Article
 
Identifier JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 23(4), 692-696
0740-3224
http://dx.doi.org/10.1364/JOSAB.23.000692
http://dspace.library.iitb.ac.in/xmlui/handle/10054/10326
http://hdl.handle.net/10054/10326
 
Language en