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6880730 
Journal Article 
Photochemical nano-scale patterning with Rhodamine 6G dye from aqueous phase - art. no. 703306 
Kassu, A; Calzzani, FA, Jr; Taguenang, JM; Sileshi, RK; Sharma, A; , 
2008 
SPIE-INT SOC OPTICAL ENGINEERING 
BELLINGHAM 
3306-3306 
WOS:000260670700003 
Surface relief gratings produced on planar substrates have been widely investigated for their application as a holographic recording medium. Much of this work has concentrated on gratings made in polymer thin films with an azo-benzene group. We describe a novel phenomenon involving surface relief gratings which are formed by deposition of Rhodamine 6G dye on polybutadiene thin film. This deposition as a grating pattern is photo-induced in a dye-solution by holographic interference of low power 488 nm light from an argon-ion laser. Dynamics of this aqueous-phase grating deposition is investigated for various concentrations of the dye. A plausible mechanism of grating formation involves photochemical reaction of polybutadiene substrate with the laser-excited dye. Surface relief structure of the grating is characterized with an atomic force microscope. 
Kawata, S; Shalaev, VM; Tsai, DP; 
978-0-8194-7253-3 
Conference on Plasmonics - Nanoimaging, Nanofabrication, and their Application IV 
San Diego, CA