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| 在粗糙表面上用液晶空间光调制器进行振动测量 | |
| 引用本文： | 叶必卿,松田清史,福智昇央,原勉,陈军.在粗糙表面上用液晶空间光调制器进行振动测量[J].光学学报,2006,26(4):57-561. |
| 作者姓名： | 叶必卿 松田清史 福智昇央 原勉 陈军 |
| 作者单位： | 1. 浙江大学现代光学仪器国家重点实验室,杭州,310027 2. 滨松光子学株式会社,日本,434-860;日本国家产业科学技术研究所,日本,305-8565 3. 滨松光子学株式会社,日本,434-860 |
| 摘 要： | 为实现在一段时间内连续实时观测振动物体的全息干涉图形,采用覆盖铝箔的喇叭作为振动物体,利用铝箔原有未经特殊处理表面反射的漫反射光成像,并用光寻址液晶空间光调制器(Liquid crystal-sparial lightmodulator,LC-SLM)作为全息记录载体,来实现振动测量。实验中采用时间平均干涉测量法,得到了不同振动频率下物体的干涉图形。同时在连续改变振动物体的振动频率时,可以清晰地观察到物体振动全息干涉图形的变化过程,即近实时的全息干涉图形。 |
| 关 键 词： | 全息光学 振动测量 时间平均 光寻址液晶空间光调制器 |
| 文章编号： | 0253-2239（2006）04-0557-5 |
| 收稿时间： | 2005-04-29 |
| 修稿时间： | 2005-10-11 |
Vibration Measurements of Rough Surfaces Using an Liquid Crystal Spatial Light Modulator |
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| Ye Biqing,Kiyofumi Matsuda,Norihiro Fukuchi,Tsutomu Hara,Chen Jun.Vibration Measurements of Rough Surfaces Using an Liquid Crystal Spatial Light Modulator[J].Acta Optica Sinica,2006,26(4):57-561. | |
| Authors: | Ye Biqing Kiyofumi Matsuda Norihiro Fukuchi Tsutomu Hara Chen Jun |
| Institution: | 1. State Key Laboratory of Modem Optical Instrumentation, Zhejiang University, Hangzhou 310027; 2. Hamamastu Photonics K. K., Japan 434-8601; 3. National Institute of Industrial Science and Technology, Japan 305- 8565 |
| Abstract: | Vibration measurement,observing the holographic interference patterns of vibrating objects in real time in a period of time,is realized with a system,in which a speaker with aluminum foil is used as the vibrating object,imaging is realized with the diffuse reflection light from the raw surface of the aluminum foil,and an optically addressed liquid crystal spatial light modulator is used as the recorder.Time average interference measurement method is used in the experiment,and the vibration interference patterns of the object with different vibrating frequencies is obtained.When the vibrating frequency changes continuously,the changing process of the holographic interference patterns of the object is observed clearly,and the near-real time holographic interference patterns are gained. |
| Keywords: | holographic optics vibration measurement time-average optical-address liquid crystal spatial light modulator |
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