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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 16 — Jun. 1, 2011
  • pp: 2408–2412

Measuring the dispersive properties of liquids using a microinterferometer

Alvaro Casas Bedoya, Christelle Monat, Peter Domachuk, Christian Grillet, and Benjamin J. Eggleton  »View Author Affiliations


Applied Optics, Vol. 50, Issue 16, pp. 2408-2412 (2011)
http://dx.doi.org/10.1364/AO.50.002408


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Abstract

Using a single-beam, compact interferometer, we measure the refractive index of liquids in the near IR. This highly compact device relies on a silica capillary with a 50 μm inner diameter: it uses a minimal volume of test liquid, isolates the liquid from the humid atmosphere, has broadband operation, and is inherently mechanically stable. These characteristics, in combination with straightforward data acquisition, make it particularly well-suited for measuring the optical properties in the near IR of a wide range of liquids. Using this refractometer, we measure the refractive index of high-index liquids that are expected to be hydroscopic. The accuracy of the refractometer ( ± 0.1 % ) is demonstrated through measuring the indices of air and pure water. We show that the hydroscopic behavior of the probed liquids has little influence on their optical properties in the near IR.

© 2011 Optical Society of America

OCIS Codes
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(130.6010) Integrated optics : Sensors
(300.1030) Spectroscopy : Absorption

ToC Category:
Integrated Optics

History
Original Manuscript: January 18, 2011
Revised Manuscript: March 23, 2011
Manuscript Accepted: April 4, 2011
Published: May 25, 2011

Citation
Alvaro Casas Bedoya, Christelle Monat, Peter Domachuk, Christian Grillet, and Benjamin J. Eggleton, "Measuring the dispersive properties of liquids using a microinterferometer," Appl. Opt. 50, 2408-2412 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-16-2408


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