Improving the uniformity of holographic recording using multi-layer photopolymer: Part II. Experimental results

被引：8

作者：

Malallah, Ra'ed ^{[1
,2
]}

Li, Haoyu ^{[3
]}

Qi, Yue ^{[4
]}

Cassidy, Derek ^{[1
]}

Muniraj, Inbarasan ^{[1
]}

Al-Attar, Nebras ^{[5
,6
]}

Sheridan, John T. ^{[1
]}

机构：

[1] Univ Coll Dublin, Coll Engn & Architecture, IoE2 Lab, Sch Elect & Elect Engn, Dublin, Ireland

[2] Univ Basrah, Fac Sci, Phys Dept, Garmat Ali, Basrah, Iraq

[3] Harbin Inst Technol, Sch Elect Engn & Automat, Ultraprecis Optoelect Instrument Engn Ctr, Harbin 150080, Heilongjiang, Peoples R China

[4] McGill Univ, Dept Phys, 3600 Univ St, Montreal, PQ H3A 2T8, Canada

[5] Univ Coll Dublin, Sch Biosyst & Food Engn, Dublin, Ireland

[6] Univ Technol Baghdad, Dept Laser & Optoelect Engn, Baghdad, Iraq

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION | 2019年 / 36卷 / 03期

基金：

爱尔兰科学基金会; 中国国家自然科学基金;

关键词：

MULTIPLE TERMINATION MECHANISMS; SENSITIZED GELATIN EMULSIONS; EFFECTIVE OPTICAL-THICKNESS; DIFFRACTION GRATINGS; MODEL; ABSORPTION; ELEMENTS; DENSITY; MEMORY;

D O I：

10.1364/JOSAA.36.000334

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In the first part of this study, a 3D nonlocal photopolymerization driven diffusion model was developed and applied to simulate the absorption and polymerization taking place during holographic exposures of a multilayer. The Beer-Lambert law was used to choose appropriate dye concentrations for each layer, with the objective of improving the resulting volume grating uniformity and thus diffraction characteristics. The predictions made, using previously estimated physical parameter values, indicated that improvements in the uniformity of the recorded modulation were possible. In this paper the results of experiments carried out to explore the validity of these predictions are presented. Improvements in material response are demonstrated experimentally, with improved grating diffraction (narrower angular selectivity) being observed for appropriately sensitized multi-layers. (C) 2019 Optical Society of America

引用

页码：334 / 344

页数：11

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