Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1540633 | Optics Communications | 2007 | 4 Pages |
Abstract
This paper describes measurements of a vibrating object with rough surface by the time-averaged method of holography using a newly designed optically addressed liquid crystal spatial light modulator with a resolution of 102 lp/mm and a diffraction efficiency of 16%. An object vibrating faster than several tens of Hz could be visualized. The pattern obtained by the method provides the locus of vibrating nodes. The advantage of this method is that a high contrast pattern of a vibrating object can be imaged in near-real-time, although the sensitivity of vibration is decreased.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Kiyofumi Matsuda, Bi Qing Ye, Norihiro Fukuchi, Hiroshi Okamoto, Tsutomu Hara,