Accession Number : ADA293169
Title : Laser-Induced Holographic Surface Relief Gratings on Nonlinear Optical Polymer Films.
Descriptive Note : Technical rept. 1 Oct 94-30 Sep 95,
Corporate Author : MASSACHUSETTS UNIV LOWELL DEPT OF CHEMISTRY
Personal Author(s) : Kim, D. Y. ; Li, L. ; Kumar, J. ; Tripathy, S. K.
PDF Url : ADA293169
Report Date : 30 MAR 1995
Pagination or Media Count : 13
Abstract : We report observation of holographic surface relief gratings with relatively large amplitude on a second order nonlinear optical polymeric material. Surface relief gratings on these polymer films were created upon exposure to polarized Ar+ laser beams at 488 nm without any subsequent processing steps. The surface structure of the relief gratings was investigated by atomic force microscopy. The depth of the surface relief in a typical case was 140 nm which is approximately 25% of the original film thickness. Diffraction efficiency of gold-coated gratings were investigated as a function of wavelength and capability of recording orthogonal gratings on the same film was demonstrated. (MM)
Descriptors : *GRATINGS(SPECTRA), *HOLOGRAPHY, *OPTICAL COATINGS, POLYMERS, REFRACTIVE INDEX, OPTICAL MATERIALS, NONLINEAR OPTICS, LASER BEAMS, DIFFRACTION, POLYMERIC FILMS, ARGON LASERS.
Subject Categories : Coatings, Colorants and Finishes
Distribution Statement : APPROVED FOR PUBLIC RELEASE