TITLE

Infrared-laser-induced periodic surface structure in azo-dye polymer

AUTHOR(S)
Ivanov, Mario; Rochon, Paul
PUB. DATE
May 2004
SOURCE
Applied Physics Letters;5/31/2004, Vol. 84 Issue 22, p4511
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Second-harmonic and third-harmonic waves that are generated in an azo-polymer form diffraction patterns without any material deformation. The source is a single IR laser beam at λ=1064 nm that is weakly absorbed by the polymer. If the IR power is sufficiently high, laser-induced periodic (700 nm) structures grow on the polymer surface and give rise to distinctive diffraction patterns in the visible and ultraviolet. If the IR power is low, there are no surface changes but diffraction patterns that have the same shape still appear. © 2004 American Institute of Physics.
ACCESSION #
13154679

 

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