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Construction of Rea-Ltime Phase Conjugate Interferometer Using Dye-Doped Films

使用染料掺杂薄膜构建实时相位共轭干涉仪

基本信息

批准号：
02555007
负责人：
FUJIWARA Hirofumi
金额：
$ 5.38万
依托单位：
Muroran Institute of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Developmental Scientific Research (B)
财政年份：
1990
资助国家：
日本
起止时间：
1990 至 1991
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-02555007/
关键词：
phase conjugate interferometer phase conjugate wave xanthene dyes azo dyes dye-doped film erythrosin-B methyl-orange degenerate four-wave mixing エリトロシンB 有機色素膜位相共役干渉法

项目摘要

The present work is concerned with a construction of a real-time phase conjugate interferometer using dye-doped polymer films and its evaluation. This interferometer consists of an Ar-ion laser as a light source, an interferometer of degenerate four-wave mixing (DFWM) configuration. which uses a phase conjugator, and a sensing part. The whole system is set on a vibration-isolated optical table. This phase conjugate interferometer has two kinds of functions : a real-time sensing of the phase difference and amplitude difference between two objects or in temporal variation in an object. Owing to both functions, an edge enhancement, a defect detection and so on also can be performed in addition to traditional real-time interferometry.In order to make possible such operations, the requirements for the dye-doped film. are : (1) it can generate phase conjugate waves due to not only the DFWM process but also a recorded interference fringe without development and (2) the polarization states of the former and latter phase conjugate signals are the same as those of the input probe wave and the. read-out pump wave, respectively.A baked erythrosin-B-doped PVA film was suitable for this purpose. The rising time of the phase conjugate signal due to the DFWM process was-lmsec., and the refrectivity of-1% was. obtained at 515nm for the pump power of-1w/cm^2. The films prepared in our laboratory had 5cm x 10cm in size and 50 mu m-100 um m in thickness.This phase conjugate interferometer was verified to work well. With a methyl-orange doped PVA film as a phase conjugator a. novelty. filtering can be performed.

本工作是关于一个实时相位共轭干涉仪的建设，使用染料掺杂聚合物薄膜和评价。该干涉仪由氩离子激光器作为光源，简并四波混频干涉仪（DFWM）结构组成。其使用相位共轭器和感测部分。整个系统安装在一个隔振的光学工作台上。这种相位共轭干涉仪具有两种功能：一种是实时检测两个物体之间的相位差和振幅差，另一种是实时检测物体的时间变化。由于这两种功能，除了传统的实时干涉测量之外，还可以进行边缘增强、缺陷检测等。为：（1）它不仅由于DFWM过程而且由于记录的干涉条纹而不显影而产生相位共轭波;（2）前、后相位共轭信号的偏振态与输入探测波的偏振态相同，烘烤的赤藓红B掺杂的PVA膜适合于此目的。由于DFWM过程引起的相位共轭信号的上升时间为-1毫秒，-1%的反射率为。在泵浦功率为-1W/cm^2的情况下，在515 nm处获得了较好的激光输出。在实验室制备的薄膜尺寸为5cm × 10 cm，厚度为50 μ m-100 μ m，经验证，该相位共轭干涉仪工作良好。以甲基橙掺杂的聚乙烯醇薄膜为相共轭剂。新奇可以执行过滤。