Adjustment of diffraction efficiency of polarization holograms in azobenzene polymers films using electric field

被引：14

作者：

Davidenko, N. A. ^{[1
]}

Davidenko, I. I. ^{[1
]}

Pavlov, V. A. ^{[1
]}

Chuprina, N. G. ^{[1
]}

Tarasenko, V. V. ^{[1
]}

Studzinsky, S. L. ^{[1
]}

机构：

[1] Kiev Taras Shevchenko Natl Univ, Volodymyrska Str 64-13, UA-01601 Kiev, Ukraine

来源：

JOURNAL OF APPLIED PHYSICS | 2017年 / 122卷 / 01期

关键词：

DONOR OLIGOMERS; POLYCOMPLEXES; DERIVATIVES; STORAGE;

D O I：

10.1063/1.4990995

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

There have been two effects of the external electric field influence on the diffraction efficiency of reconstructed holograms observed in the films of copolymers 4-[(2-nitrophenyl) diazenyl] phenyl methacrylate with octylmethacrylate, when holographic recording of the plane wave front for parallel and orthogonal orientation of polarization vectors of light beams was performed at room temperature. After recording at exposure with small energies, diffraction efficiency in the electric field formed by corona discharge decreases, while with large exposure energies, it increases. Diffraction efficiency and recording velocity are higher in copolymer with lower softening temperature. The first effect is caused by reorientation of the dipole moments of azobenzene isomer fragments in the electric field, while the growth of diffraction efficiency is explained by the increase in the amplitude of regular geometric relief of the film surface, which appears during formation of the polarization hologram. Published by AIP Publishing.

引用

页数：6

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