Formation of the spontaneous surface relief grating under pulsed exposure

Author

Ahmadi-Kandjani, Sohrab ; Mazaheri, Leyla

Author_Institution

Res. Inst. for Appl. Phys. & Astron., Univ. of Tabriz, Tabriz, Iran

fYear

2011

fDate

26-30 June 2011

Firstpage

1

Lastpage

4

Abstract

Formation of the spontaneous surface relief grating under pulsed exposure with different pulse widths and repetition rates are studied. We used a low power diode laser with the wavelength of λ= 532nm as pump beam at normal incidence to the surface of azo-polymer film. The wavelength of pump beam is far from the maximum of absorption spectrum. Spontaneous surface relief grating with grating pitch of ~1383nm was formed.

Keywords

absorption coefficients; diffraction gratings; optical films; optical polymers; optical pumping; polymer films; absorption spectrum; azo-polymer film; grating pitch; laser pulse widths; low power diode laser; pulse repetition rates; pulsed exposure; pump beam; spontaneous surface relief grating; wavelength 532 nm; Diffraction; Gratings; Laser beams; Measurement by laser beam; Optical surface waves; Surface emitting lasers; Surface topography; Spontaneous surface relief grating; azopolymer; mass transport; photoisomerization; pulsed exposure; thin film;

fLanguage

English

Publisher

ieee

Conference_Titel

Transparent Optical Networks (ICTON), 2011 13th International Conference on

Conference_Location

Stockholm

ISSN

2161-2056

Print_ISBN

978-1-4577-0881-7

Electronic_ISBN

2161-2056

Type

conf

DOI

10.1109/ICTON.2011.5971178

Filename

5971178