Parallel plate interferometer with a reflecting mirror for measuring angular displacement
Data(s) |
2007
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Resumo |
A parallel plate interferometer with a reflecting mirror for measuring angular displacement is proposed. A deflection angle of a beam caused by an angular displacement is amplified by use of a reflecting mirror to increase the optical path difference (OPD) in the plane-parallel plate, which provides high sensitivity of the phase measurement. Detection of light transmitted through the plane-parallel plate with a position sensitive detector (PSD) enables high accurate measurement of the initial angle of incidence to the plane-parallel plate with insensitivity to stray light. The improved parallel plate interferometer achieves a measurement repeatability of 10(-8) rad. (C) 2007 The Optical Society of Japan. |
Identificador | |
Idioma(s) |
英语 |
Fonte |
郑德锋;王向朝;Sasaki Osami .,Opt. Rev.,2007,14(5):314-318 |
Palavras-Chave | #angular displacement #interference measurement #plane-parallel plate #laser diode #phase measurement |
Tipo |
期刊论文 |