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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 29 — Oct. 10, 2012
  • pp: 6937–6944

Determination of thickness and optical constants of solgel derived polyvinylpyrrolidone/ZrO2 films from transmission spectra using different dispersion models

Hongbao Jia, Jinghua Sun, Yao Xu, and Dong Wu  »View Author Affiliations


Applied Optics, Vol. 51, Issue 29, pp. 6937-6944 (2012)
http://dx.doi.org/10.1364/AO.51.006937


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Abstract

Transmission measurements have been used to investigate the optical properties of polyvinylpyrrolidone (PVP)/ZrO2 films synthesized by the solgel route. The optical constants of PVP/ZrO2 films deposited on quartz substrates were determined by fitting transmission spectra in the wavelength range of 200–800 nm with the Tauc–Lorentz and Cody–Lorentz physical models. Combined with Urbach tail, both models give a good description of transmission data and reveal that refractive index of film slightly decreases with increasing PVP mass fraction. X-ray reflectivity (XRR) measurements were also performed on PVP/ZrO2 films to complement the thicknesses. The value of film thickness, including interface information from transmission spectra, is consistent with that result obtained from XRR, indicating that fitting transmission spectrum is a high reliable optical characterization.

© 2012 Optical Society of America

OCIS Codes
(120.7000) Instrumentation, measurement, and metrology : Transmission
(160.6060) Materials : Solgel
(240.5770) Optics at surfaces : Roughness
(310.6860) Thin films : Thin films, optical properties
(340.7450) X-ray optics : X-ray interferometry

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: June 6, 2012
Revised Manuscript: September 2, 2012
Manuscript Accepted: September 7, 2012
Published: October 4, 2012

Citation
Hongbao Jia, Jinghua Sun, Yao Xu, and Dong Wu, "Determination of thickness and optical constants of solgel derived polyvinylpyrrolidone/ZrO2films from transmission spectra using different dispersion models," Appl. Opt. 51, 6937-6944 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-29-6937


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