TITLE

Photoinduced permanent gratings inside bulk azodye-doped polymers by the coherent field of a femtosecond laser

AUTHOR(S)
Si, Jinhai; Qiu, Jianrong; Zhai, Jianfeng; Shen, Yuquan; Hirao, Kazuyuki
PUB. DATE
January 2002
SOURCE
Applied Physics Letters;1/21/2002, Vol. 80 Issue 3, p359
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Permanent holographic gratings were fabricated in bulk azodye-doped polymethylmethacrylate by the coherent field of a femtosecond laser. Optical microscopy and atomic force microscopy observations revealed that the gratings consist of two parts, surface relief gratings on both surfaces and refractive index modulated volume gratings in the interior of the polymers. The diffraction efficiency of the first-order Bragg for the gratings was estimated to be 90%. © 2002 American Institute of Physics.
ACCESSION #
5884267

 

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