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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 23, Iss. 12 — Jun. 15, 1984
  • pp: 1980–1985

Refractive properties of magnesium fluoride

Marilyn J. Dodge  »View Author Affiliations


Applied Optics, Vol. 23, Issue 12, pp. 1980-1985 (1984)
http://dx.doi.org/10.1364/AO.23.001980


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Abstract

The refractive indices of a commercially available specimen of single-crystal MgF2 were determined for both the ordinary and extraordinary rays at selected wavelengths from 0.2026 to 7.04 μm. Measurements were made by means of the minimum-deviation method on a precision spectrometer near 19°C. The experimentally determined index values for each polarization were fitted to a three-term Sellmeier-type dispersion equation of the form n 2 - 1 = A j λ 2 ( λ 2 - λ j 2 ), where n is the refractive index, λ is the wavelength of interest, λj is the calculated wavelength of an oscillator, and Aj is the strength of the oscillator at λj. The birefringence was computed as a function of wavelength from the calculated index values obtained for the two polarizations. The dispersion coefficients were also determined for the 0 ray and for the birefringence. The results of this study are compared with previously reported work on the refractive properties of MgF2.

© 1984 Optical Society of America

History
Original Manuscript: February 6, 1984
Published: June 15, 1984

Citation
Marilyn J. Dodge, "Refractive properties of magnesium fluoride," Appl. Opt. 23, 1980-1985 (1984)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-23-12-1980

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