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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 9 — Mar. 20, 2009
  • pp: 1758–1763

Measuring the volume of a fluid in a diamond anvil cell using a confocal microscope

G. J. Hanna and M. D. McCluskey  »View Author Affiliations


Applied Optics, Vol. 48, Issue 9, pp. 1758-1763 (2009)
http://dx.doi.org/10.1364/AO.48.001758


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Abstract

Confocal microscopy is a potentially powerful technique for obtaining equation-of-state (EOS) data for fluids in a diamond anvil cell. Unlike conventional microscopy, a confocal microscope scans the cell in three dimensions. From the intensity profile of the reflected laser light, we calculated the index of refraction and optical thickness of the sample contained in the cell. These measurements, combined with the cross-sectional area of the sample, enabled us to calculate the volume. As a test of the experimental technique and analysis, we produced a pressure–volume curve for liquid water at 300 K . The results agree with published EOS data within experimental error.

© 2009 Optical Society of America

OCIS Codes
(000.2170) General : Equipment and techniques
(000.6850) General : Thermodynamics
(010.2940) Atmospheric and oceanic optics : Ice crystal phenomena
(010.7340) Atmospheric and oceanic optics : Water
(160.4760) Materials : Optical properties
(180.1790) Microscopy : Confocal microscopy

ToC Category:
Microscopy

History
Original Manuscript: November 24, 2008
Revised Manuscript: February 20, 2009
Manuscript Accepted: February 27, 2009
Published: March 17, 2009

Citation
G. J. Hanna and M. D. McCluskey, "Measuring the volume of a fluid in a diamond anvil cell using a confocal microscope," Appl. Opt. 48, 1758-1763 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-9-1758


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References

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