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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 9, Iss. 3 — Mar. 1, 1970
  • pp: 645–648

Measurement of Length Shifts down to 10−3 Å with a Two-Mode Laser

H. Boersch, H. Eichler, and W. Wiesemann  »View Author Affiliations


Applied Optics, Vol. 9, Issue 3, pp. 645-648 (1970)
http://dx.doi.org/10.1364/AO.9.000645


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Abstract

The frequency of one axial mode of a two-mode He–Ne laser is tuned by mirror displacement independently from the other mode if a third mirror is added to the usual two laser mirrors. The frequency shift is proportional to the mirror displacement and can be detected with high sensitivity by observing the beat frequency with the other axial mode. The sensitivity of such a two-mode laser with a coupled resonator for measurements of small length shifts has been tested.

© 1970 Optical Society of America

History
Original Manuscript: July 7, 1969
Published: March 1, 1970

Citation
H. Boersch, H. Eichler, and W. Wiesemann, "Measurement of Length Shifts down to 10−3 Å with a Two-Mode Laser," Appl. Opt. 9, 645-648 (1970)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-9-3-645

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