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Journal of Optical Technology

Journal of Optical Technology

| SIMULTANEOUS RUSSIAN-ENGLISH PUBLICATION

  • Vol. 79, Iss. 7 — Jul. 1, 2012
  • pp: 385–389

Parametrization of the Forouhi–Bloomer–Lorentz model for Ta2O5 films in the fundamental-absorption region

O. D. Vol’pyan, Yu. A. Obod, and P. P. Yakovlev  »View Author Affiliations


Journal of Optical Technology, Vol. 79, Issue 7, pp. 385-389 (2012)
http://dx.doi.org/10.1364/JOT.79.000385


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Abstract

The complex optical and dielectric functions of the energy of an electromagnetic wave are calculated for a film of tantalum (V) oxide in the short-wavelength region, including the fundamental-absorption region. An additive combination of the Forouhi–Bloomer and Lorentz models is constructed to compute these functions. Versions of the Forouhi–Bloomer model with a dipole-transition matrix element that is independent of the wave energy are considered, along with a modified model. It is established that the modified model has an advantage when describing broad-band dielectric amorphous media. The optical band gap computed from the Forouhi–Bloomer and Lorentz models is compared with the value determined from the Tautz extrapolation.

© 2012 OSA

History
Original Manuscript: November 2, 2011
Published: July 31, 2012

Citation
O. D. Vol’pyan, Yu. A. Obod, and P. P. Yakovlev, "Parametrization of the Forouhi–Bloomer–Lorentz model for Ta2O5 films in the fundamental-absorption region," J. Opt. Technol. 79, 385-389 (2012)
http://www.opticsinfobase.org/jot/abstract.cfm?URI=jot-79-7-385

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