Effect of chromium doping on the diffraction efficiency of methylene blue sensitized PVA/acrylamide films

The effect of chromium doping on methylene blue sensitized Poly (vinyl alcohol)/Acrylamide was carried out by varying the ratios of Ammonium dichromate and methylene blue. In the case of films without ammonium dichromate, the diffraction efficiency was found to decrease on storage. On chromium dopin...

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Bibliographic Details
Published in:Journal of materials science. Materials in electronics 2009, Vol.20 (Suppl 1), p.216-220
Main Authors: John, Beena Mary, Joseph, Rani, Sreekumar, K., Kartha, C. Sudha
Format: Article
Language:English
Subjects:
Acrylamide
Characterization and Evaluation of Materials
Chemistry and Materials Science
Chromates
Chromium
Diffraction efficiency
Doping
Efficiency
Electronics
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Gratings
Hogs
Materials Science
Methylene blue
Optical and Electronic Materials
Optical elements, devices, and systems
Optics
Physics
Storage life
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Summary:The effect of chromium doping on methylene blue sensitized Poly (vinyl alcohol)/Acrylamide was carried out by varying the ratios of Ammonium dichromate and methylene blue. In the case of films without ammonium dichromate, the diffraction efficiency was found to decrease on storage. On chromium doping the storage life was improved. Interestingly, a self-enhancement in efficiency was observed for a particular ratio of methylene blue and ammonium dichromate.
ISSN:0957-4522
1573-482X
DOI:10.1007/s10854-007-9544-6