Accession Number : ADA319003
Title : Polarization Dependence of Holographic Surface Relief Gratings Recorded on Azobenzene Polymers.
Descriptive Note : Technical rept. 1 Jun 95-30 Sep 96,
Corporate Author : MASSACHUSETTS UNIV LOWELL DEPT OF CHEMISTRY
Personal Author(s) : Jiang, X. L. ; Kumar, J. ; Kim, D. Y. ; Li, L. ; Tripathy, S. K.
Report Date : 19 NOV 1996
Pagination or Media Count : 12
Abstract : We report our investigations of polarization dependent recording of surface relief gratings on azobenzene containing polymer films. The experimental results indicate that the localized variations of magnitude and polarization of the resultant electric field and the existence of a nonzero component of the resultant electric field along the light intensity gradient direction in the film are essential to the formation of the surface relief gratings. Large surface modulation (>6500A) were obtained under optimal recording conditions. It has been found that under optimal recording condition, the diffraction efficiency of the surface relief grating is dependent only on the total light energy incident on the film surface and the diffraction efficiency increase rate is proportion to the intensity of recording beams.
Descriptors : *POLARIZATION , *POLYMERS , *SURFACES , *RECORDING SYSTEMS , *AZOBENZENES , OPTIMIZATION , ENERGY , INTENSITY , LIGHT , ELECTRIC FIELDS , HOLOGRAPHY , DIFFRACTION , POLYMERIC FILMS , MODULATION , GRADIENTS.
Subject Categories : POLYMER CHEMISTRY
Distribution Statement : APPROVED FOR PUBLIC RELEASE