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Proceedings Paper

Surface relief grating formation on an azo-polymer
Author(s): Ui-Jung Hwang; Jung-Sung Kim; Se-Yen You; Hyun-Ki Lee; Cha-Hwan Oh; Seok-Ho Song; Pill-Soo Kim; Yang-Kyoo Han
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Paper Abstract

Two types of photo-induced gratings, birefringence and surface relief gratings, were formed on an azo polymer film when two orthogonal circularly polarized writing beams irradiated the film. All the diffracted beams from the gratings were measured during irradiation and the surface relief height inscribed on the film was measured by using atomic force microscope (AFM) after the irradiation. The transmitted beam intensities were calculated using a Jones matrix for two gratings. The phase differences for the two gratings were separately determined by fitting the experimental results to the theory. Next, the changes of the phase differences of two gratings were measured in-situ using an exact equations. The results from this method agreed with previous one. The phase difference between two gratings was measured. The phase difference between two gratings converged on about 45 degrees in our case. Diffraction efficiency measurement and analysis revealed that the two gratings were independent of each other and that the mechanisms for the two gratings were different.

Paper Details

Date Published: 10 November 2003
PDF: 10 pages
Proc. SPIE 5212, Linear and Nonlinear Optics of Organic Materials III, (10 November 2003); doi: 10.1117/12.504672
Show Author Affiliations
Ui-Jung Hwang, Hanyang Univ. (South Korea)
Jung-Sung Kim, Hanyang Univ. (South Korea)
Se-Yen You, Hanyang Univ. (South Korea)
Hyun-Ki Lee, Hanyang Univ. (South Korea)
Cha-Hwan Oh, Hanyang Univ. (South Korea)
Seok-Ho Song, Hanyang Univ. (South Korea)
Pill-Soo Kim, Hanyang Univ. (South Korea)
Yang-Kyoo Han, Hanyang Univ. (South Korea)

Published in SPIE Proceedings Vol. 5212:
Linear and Nonlinear Optics of Organic Materials III
Mark G. Kuzyk; Manfred Eich; Robert A. Norwood, Editor(s)

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