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Polarization holographic recording in azo-benzene doped polyurethane polymer films

J. ALEKSEJEVA1,* , A. GERBREDERS1, M. REINFELDE1, J. TETERIS1

Affiliation

  1. Institute of Solid State Physics, University of Latvia

Abstract

In this report we describe a holographic recording of polarisation and surface relief gratings in Disperse Red 1 (DR1) doped polyurethane polymer films. DR1 dye molecules are chemically bounded to the polyurethane polymer main chain. Polarization holographic recording of the gratings was performed by orthogonally circularly polarized two beam setup. The 532 nm and 632.8 nm lasers were used for recording. A detailed study of a photoinduced birefringence and changes of optical properties was performed. The photoinduced birefringence Δn was measured at 634 and 650 nm wavelengths. Surface relief grating (SRG) formation was observed during polarization holographic recording process. A profile of SRG was studied by AFM. A relationship between SRG formation and photoinduced birefringence has been discussed..

Keywords

Disperse red 1, Polarisation grating, Photoinduced birefringence.

Submitted at: June 2, 2011
Accepted at: Nov. 23, 2011

Citation

J. ALEKSEJEVA, A. GERBREDERS, M. REINFELDE, J. TETERIS, Polarization holographic recording in azo-benzene doped polyurethane polymer films, Journal of Optoelectronics and Advanced Materials Vol. 13, Iss. 11-12, pp. 1577-1580 (2011)