Title :
Electric Field Induced by Ion Cr³+ in Volume Hologram Made with Dichromated Gelatin
Author :
Ren, Zhi ; Li, Songtao ; Liu, Dahe
Author_Institution :
Sch. of Math. & Phys., North China Electr. Power Univ., Baoding, China
Abstract :
There are lots of ions Cr3+ in dichromated gelatin (DCG) after exposure and processing. Since the density distribution of Cr3+ is proportional to the exposure of light, distribution of Cr3+ will be sinusoidal. Meanwhile, the ions or molecules of other materials are distributed uniformly in a certain range around Cr3+. Therefore, the distributions of positive and negative charges will be unequal, and an electric field will be induced inside the medium of volume hologram in macro-scale. The intensity of such electric field is calculated basing on this mechanism, and it is found to be considerably strong.
Keywords :
chromium; electric fields; electro-optical effects; gelatin; holography; ions; optical materials; Cr; density distribution; dichromated gelatin; electric field; negative charge distribution; positive charge distribution; volume hologram; Chromium; Holographic optical components; Holography; Optical mixing; Optical modulation; Optical refraction; Optical variables control; Physics; Refractive index; Structural beams;
Conference_Titel :
Photonics and Optoelectronic (SOPO), 2010 Symposium on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4963-7
Electronic_ISBN :
978-1-4244-4964-4
DOI :
10.1109/SOPO.2010.5504474
