Title of article
Two-photon assisted excited state absorption in multiferroic YCrO3 nanoparticles
Author/Authors
Krishnan، نويسنده , , Shiji and Suchand Sandeep، نويسنده , , C.S. and Philip، نويسنده , , Reji and Kalarikkal، نويسنده , , Nandakumar، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2012
Pages
5
From page
59
To page
63
Abstract
We report a novel functionality for the ferroelectric-antiferromagnet YCrO3 powder of optical limiting upon illumination by nanosecond laser pulses at 532 nm. The optical limiting properties are investigated using the open aperture z-scan technique. The obtained nonlinearity fits to a three-photon like absorption mechanism. It is proposed that this nonlinearity is caused by two-photon absorption, followed by excited state absorption. Two different sized samples were investigated and the nonlinearity is found to be size dependent.
Journal title
Chemical Physics Letters
Serial Year
2012
Journal title
Chemical Physics Letters
Record number
1932774
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