Title of article
Intensity-dependent transient photodarkening in visible and far infrared absorption spectra of As50Se50 thin film
Author/Authors
A.R. Barik، نويسنده , , Mukund Bapna، نويسنده , , Ramakanta Naik، نويسنده , , Uday Deshpande، نويسنده , , M. V. Rama Rao and T. Shripathi، نويسنده , , K.V. Adarsh، نويسنده ,
Issue Information
دوهفته نامه با شماره پیاپی سال 2013
Pages
5
From page
479
To page
483
Abstract
We report intensity-dependent transient photodarkening (TPD) in As50Se50 thin film when illuminated with sub-bandgap light of wavelength 671 nm. TPD is always accompanied by concurrent changes in the far infrared absorption spectrum and points out the structural units associated with such changes. Strikingly TPD and its kinetics show an exponential dependence on the pump beam intensity and we foresee that light intensity can be used as an effective tool to control such processes.
Keywords
Amorphous materials , Thin films , Optical properties
Journal title
Materials Chemistry and Physics
Serial Year
2013
Journal title
Materials Chemistry and Physics
Record number
1065044
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