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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 8 — Mar. 10, 2011
  • pp: 1190–1196

Prism-pair interferometry by homodyne interferometers with a common light source for high-accuracy measurement of the absolute refractive index of glasses

Yasuaki Hori, Akiko Hirai, and Kaoru Minoshima  »View Author Affiliations


Applied Optics, Vol. 50, Issue 8, pp. 1190-1196 (2011)
http://dx.doi.org/10.1364/AO.50.001190


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Abstract

A prism-pair interferometer comprising two homodyne interferometers with a common light source was developed for high-precision measurements of the refractive index of optical glasses with an uncertainty of the order of 10 6 . The two interferometers measure changes in the optical path length in the glass sample and in air, respectively. Uncertainties in the absolute wavelength of the common light source are cancelled out by calculating a ratio between the results from the interferometers. Uncertainties in phase measurement are suppressed by a quadrature detection system. The combined standard uncertainty of the developed system is evaluated as 1.1 × 10 6 .

© 2011 Optical Society of America

OCIS Codes
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.3930) Instrumentation, measurement, and metrology : Metrological instrumentation
(120.4530) Instrumentation, measurement, and metrology : Optical constants
(160.4760) Materials : Optical properties

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: November 9, 2010
Manuscript Accepted: January 4, 2011
Published: March 9, 2011

Citation
Yasuaki Hori, Akiko Hirai, and Kaoru Minoshima, "Prism-pair interferometry by homodyne interferometers with a common light source for high-accuracy measurement of the absolute refractive index of glasses," Appl. Opt. 50, 1190-1196 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-8-1190


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References

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