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Proceedings Paper

New epoxy-based linear polymer as recording medium for transient holography
Author(s): Sergei M. Maloletov; A. S. Kutzenko; Anatoly A. Borshch; Michail S. Brodyn; Oleg M. Buryn; Vladyslav I. Volkov
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Paper Abstract

Nonlinear refraction of a new polymer structure based upon diglycidylether of bisphenol-A has been studied in connection with transient holographic grating recording. The polymer contains 4 aminoazobensen as nonlinear optically active side groups covalently attached at each monomer unit. Dynamic grating writing and relaxation processes have been studied using frequency doubled YAG:Nd+3 laser ((tau) p equals 20 ns, (lambda) equals 0.53 micrometers ). The dynamics of transient gratings was shown to have two different erasure times corresponding to different nonlinearity mechanisms fast one (relaxation time 20 ns and (chi) (3) equals 5 (DOT) 10-8 esu) and slow one (quasi-stationary). The later makes it possible to write and erase phase gratings reversibly by ns pulses and store information for hours. An analysis of possible mechanisms for refractive index nonlinear behavior in new structure is presented. In particular, a role of TRANS-CIS photoisomerization of the azo-compound in nonlinear optical properties of the structure is discussed. The results vividly manifest the possibility of the polymer to be used as reversible medium for information storage. Besides, the polymer structure in question exhibits both ns and quasistationary response together with simplicity of fabrication and low prises which have wide prospects for different applications in the field of optical data processing.

Paper Details

Date Published: 22 April 1996
PDF: 12 pages
Proc. SPIE 2688, Holographic Materials II, (22 April 1996); doi: 10.1117/12.238534
Show Author Affiliations
Sergei M. Maloletov, L.V. Pisarzhevskij Institute of Physical Chemistry (Ukraine)
A. S. Kutzenko, Institute of Physical Chemistry (Ukraine)
Anatoly A. Borshch, Institute of Physics (Ukraine)
Michail S. Brodyn, Institute of Physics (Ukraine)
Oleg M. Buryn, Institute of Physics (Ukraine)
Vladyslav I. Volkov, Institute of Physics (Ukraine)


Published in SPIE Proceedings Vol. 2688:
Holographic Materials II
T. John Trout, Editor(s)

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