Title of article
Influence of composition on the photorefractive centers in pure LiNbO3 at low light intensity
Author/Authors
Yan، Wenbo نويسنده , , Kong، Yongfa نويسنده , , Shi، Lihong نويسنده , , Liu، Lei Sun, Hongde نويسنده , , Li، Xiaochun نويسنده , , Zhao، Di نويسنده , , Xu، Jingjun نويسنده , , Chen، Shaolin نويسنده , , Zhang، Ling نويسنده , , Huang، Ziheng نويسنده , , Liu، Shiguo نويسنده , , Zhang، Guangyin نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2006
Pages
-2452
From page
2453
To page
0
Abstract
The influence of composition on the photorefractive effect in pure LiNbO3 crystals at low light intensity was investigated. The experimental results indicate that different defects dominate the photorefractive centers of pure LiNbO3 with various compositions. Bipolarons are considered to be responsible for the enhanced photovoltaic field in reduced near-stoichiometric LiNbO3, and their bulk photovoltaic constant (kappa) is estimated to be ~6.95×10^-32 m^3/V. Q polarons (composed of two bipolarons) are introduced to explain the photorefractive effect of congruent LiNbO3 at both low and high light intensities.
Keywords
Sulphur dioxide , atmospheric VOC , isoprene , isoprene oxidation , inhibition of S(IV) autoxidation
Journal title
Applied Optics
Serial Year
2006
Journal title
Applied Optics
Record number
75368
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