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Force microscopy using common-path optical-heterodyne interferometer
This paper proposes a common-path optical-heterodyne interferometer for developing a very stable force microscope. The deflections of the force-sensing cantilever are detected by the optical heterodyne method which reduces low-frequency noise. The optical system is a common-path interferometer using...
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Published in: | Japanese Journal of Applied Physics 1991-03, Vol.30 (3), p.587-590 |
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Main Authors: | , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | This paper proposes a common-path optical-heterodyne interferometer for developing a very stable force microscope. The deflections of the force-sensing cantilever are detected by the optical heterodyne method which reduces low-frequency noise. The optical system is a common-path interferometer using a Wollaston prism, which reduces the effects of mechanical vibrations and perturbation of the optical path length. In this paper, we proposed the optical system, constructed a system and measured the surface profile of optical disk grooves. |
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ISSN: | 0021-4922 1347-4065 |
DOI: | 10.1143/jjap.30.587 |