8 August 2003 Hologram recording in azobenzene oligomers
Author Affiliations +
Abstract
Elementary hologram (holographic grating) recording and their coherent optical erasure have been experimentally studied in azobenzene oligomer (ABO) layers differing by their chemical composition, matrices and by the connection type of azobenzene chromophores to the matrix (dispersed or covalently bound). The best holographic parameters (7.9% diffraction efficiency and 86 J/cm2 specific recording energy) were achieved in the samples with covalent bonding to the matrix. Vector recording is also possible. Recording is unstable and reversible. The coherent optical erasure studies have shown its efficiency dependencies on the initial diffraction efficiency, erasing beam intensity and grating period which are different for three groups of ABO samples. The conclusion is made that recording is due to the photoinduced alignment of the azobenzene chromophores followed by refractive index changes. These are the first results and further studies are in progress.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Andris O. Ozols, Andris O. Ozols, Valdis Kampars, Valdis Kampars, Mara Reinfelde, Mara Reinfelde, Valdis Kokars, Valdis Kokars, } "Hologram recording in azobenzene oligomers", Proc. SPIE 5123, Advanced Optical Devices, Technologies, and Medical Applications, (8 August 2003); doi: 10.1117/12.517010; https://doi.org/10.1117/12.517010
PROCEEDINGS
8 PAGES


SHARE
RELATED CONTENT

Coupling and waveguiding in photopolymers
Proceedings of SPIE (September 22 1997)
New type of photopolymer system for holography
Proceedings of SPIE (December 31 1996)
Holograms of fluorescent albumin
Proceedings of SPIE (November 02 2011)

Back to Top