Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Recording mechanism of photochemical holograms in a thiazine-dye-polyvinyl-alcohol medium under the action of a helium-neon laser

Not Accessible

Your library or personal account may give you access

Abstract

This paper discusses the mechanism of amplitude holographic recording in polyvinyl alcohol films with additives of thiazine dyes (thionine, methylene blue) under the action of a helium-neon laser. It is proposed to describe the photochemical transformations of the dye by a sequential reaction scheme with one reversible stage. It is shown that the presence of associates (dimers) of the dyes in the films has a substantial effect on the bleaching kinetics. Plasticization of the polymer makes it possible to control the ratio of the rate constants of the reaction scheme and also results in complete breakdown of the holographic gratings after the recording is completed. The kinetics of spontaneous erasure of the holograms in the test medium are compared with those of the thiazine-dye-deoxyribonucleic-acid (DNA) film system.

PDF Article
More Like This
Hologram recording in polyvinyl alcohol/acrylamide photopolymers by means of pulsed laser exposure

Celia Garcia, Inmaculada Pascual, Angel Costela, Inmaculada Garcia-Moreno, Clara Gomez, Antonio Fimia, and Roberto Sastre
Appl. Opt. 41(14) 2613-2620 (2002)

Fabrication and characterization of methylene-blue-doped polyvinyl alcohol-polyacrylic acid blend for holographic recording

Mythili Ushamani, Krishnapillai Sreekumar, Cheranellore S. Kartha, and Rani Joseph
Appl. Opt. 43(18) 3697-3703 (2004)

Dichromated polyvinyl alcohol as a real-time hologram recording material: some observations and discussions

M. Barikani, E. Simova, and M. Kavehrad
Appl. Opt. 34(13) 2172-2179 (1995)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved