Spatially Resolved Analysis of Bragg Selectivity

Applied Sciences

Tina Sabel¹ 

[1] Department of Chemistry, Technische Universität Berlin, Strasse des 17. Juni 135, Berlin 10623, Germany; E-Mail

关键词: volume holography;    phase gratings;    optical storage materials;    integrated optics materials;    photosensitive materials;    polymers;   

DOI  :  10.3390/app5041064

来源: mdpi

【 摘 要 】

This paper targets an inherent control of optical shrinkage in photosensitive polymers, contributing by means of spatially resolved analysis of volume holographic phase gratings. Point by point scanning of the local material response to the Gaussian intensity distribution of the recording beams is accomplished. Derived information on the local grating period and grating slant is evaluated by mapping of optical shrinkage in the lateral plane as well as through the depth of the layer. The influence of recording intensity, exposure duration and the material viscosity on the Bragg selectivity is investigated.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.