標題: Identifying the subwavelength-aperture-width variation in the far field with tunable asymmetrically-embedded-aperture interferometer configuration
作者: Chu, SC
Chern, JL
光電工程學系
Department of Photonics
公開日期: 1-Aug-2005
摘要: A tunable asymmetrically-embedded-aperture interferometer configuration is proposed to enhance the measurement sensitivity of subwavelength variation. With this configuration, an aperture of reference was posited asymmetrically, relative to the test aperture, that exhibited subwavelength variation. By a shift in the relative position of the reference aperture, the detection sensitivity of measuring the subwavelength variation in the far field can be enhanced to a desired value at any specific detection width. We discuss the underlying mechanism of optimization and address the difference between the embedded-aperture interferometry and tunable asymmetrically-embedded-aperture interferometry with respect to tolerance. (C) 2005 Optical Society of America.
URI: http://dx.doi.org/10.1364/JOSAA.22.001600
http://hdl.handle.net/11536/13442
ISSN: 1084-7529
DOI: 10.1364/JOSAA.22.001600
期刊: JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION
Volume: 22
Issue: 8
起始頁: 1600
結束頁: 1606
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