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The effect of polymer host on volume phase holographic recording properties
Author(s) -
Bloom Allen,
Bartolini R. A.,
Hung P. L. K.
Publication year - 1977
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760170605
Subject(s) - polyester , materials science , holography , epoxy , monomer , polymer , phase (matter) , photochemistry , diffraction efficiency , intramolecular force , polymer chemistry , composite material , organic chemistry , optics , optoelectronics , chemistry , physics , grating
We have studied the effect of unsaturated‐polyester and epoxy hosts on the volume phase holographic recording properties of media using camphorquinone and 2, 3‐pentanedione as guests. The sensitivity, determined by holographic diffraction efficiency on exposure to an Ar + laser, was used as a probe for the chemical behavior of the medium. Intramolecular, photochemical reactions involving 2, 3‐pentanedione in the epoxy hosts are less effective than in the polyesters. For inter‐molecular reactions initiated by photoexcited camphorquinone, media having polyester hosts are again more sensitive. The availability in unsaturated‐polyester hosts of residual monomer for free‐radical addition reactions is a determining factor in the recording mechanism.