Instrument for measuring small angles by use of multiple total internal reflections in heterodyne interferometry

Ming Hung Chiu, Shinn Fwu Wang, Rong Seng Chang

研究成果: 雜誌貢獻期刊論文同行評審

66 引文 斯高帕斯(Scopus)

摘要

A new instrument for measuring small angina by use of multiple total internal reflections in heterodyne interferometry is presented. With this instrument we can achieve a small rotation angle only by measuring the variation in phase difference between s- and p-polarization states. To improve its sensitivity we increase the number of total internal reflections by using two parallelogram prisms instead, of two right-angle prisms. The angular resolution of the new instrument is better than 2.2 × 10-6 rad over the measurement range -2.12° ≤ θ ≤ 2.12° for 20 total-internal reflections. The experimental results and the theoretical curve are in good agreement.

原文???core.languages.en_GB???
頁(從 - 到)5438-5442
頁數5
期刊Applied Optics
43
發行號29
DOIs
出版狀態已出版 - 10 10月 2004

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