摘要
A novel design for the precise measurement of surface variation based on volume holography is proposed. The volume hologram is a spatial filter, which records the index grating corresponding to the interference fringes by a plane wave and a divergent spherical wave. In the measuring process, a point source attached to a probe is used to read the hologram. A precise measurement can be achieved because the horizontal displacement of the point source is very sensitive to the hologram. This sensitivity is higher than that of a holographic confocal microscopy based on the longitudinal displacement.
| 原文 | ???core.languages.en_GB??? |
|---|---|
| 頁（從 - 到） | 319-321 |
| 頁數 | 3 |
| 期刊 | Microwave and Optical Technology Letters |
| 卷 | 34 |
| 發行號 | 4 |
| DOIs | |
| 出版狀態 | 已出版 - 20 8月 2002 |