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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 22, Iss. 20 — Oct. 15, 1983
  • pp: 3177–3181

Measuring refractive index and thickness of thin films: a new technique

Tie-Nan Ding and Elsa Garmire  »View Author Affiliations


Applied Optics, Vol. 22, Issue 20, pp. 3177-3181 (1983)
http://dx.doi.org/10.1364/AO.22.003177


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Abstract

Properties of a leaky quasi-waveguide formed by a thin film of refractive index smaller than the substrate are described. By exciting these leaky waves through the substrate, we have demonstrated a convenient and accurate method of measuring both the refractive index and thickness of thin films. Experimental results are given for polystyrene, with a demonstrated accuracy comparable with both that of prism coupling into a waveguiding film and with ellipsometry.

© 1983 Optical Society of America

History
Original Manuscript: February 26, 1983
Published: October 15, 1983

Citation
Tie-Nan Ding and Elsa Garmire, "Measuring refractive index and thickness of thin films: a new technique," Appl. Opt. 22, 3177-3181 (1983)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-22-20-3177

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