A new spectroscopic method to get the optical constants of an absorbing material: The case of SrTiO3 |
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| Authors: | A. Hadni Gerbaux M. Tazawa |
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| Affiliation: | (1) Laboratoire Infrarouge Lointain Laboratoire de Minéralogie, Cristallographie et Physique Infrarouge URA CNRS 809, Université of Nancy 1, B. P. 239, F-54506 Vandoeuvre-les-Nancy cedex, France;(2) G.I.R.I., Irate-cho, Kita-ku, 462 Nagoya, Japan |
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| Abstract: | To illustrate a previous paper (1) we compute the complex refractive index = n -jk of a SrTiO3 single crystal plate cut persendicular to the axis, at  =270 cm–1 with a new spectroscopic method where the SrTiO3 plate is covered with a thin Ge film. Irregular spaced interferences fringes lead to a direct determination of n and k at the minima and maxima. In the case of SrTiO3 the results are in good agreement with Kramers-Kronid determinations made by Barker and Tinkham (2). |
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| Keywords: | Optical constants Antireflection transparent layers |
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