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Proceedings Paper

Optical properties of polycrystalline InxGa1-xSb (x=0.20) from 15 to 30 um
Author(s): Cristiana E. A. Grigorescu; Stefan A. Manea; Michaela F. Logofatu; Ion I. Munteanu; B. Logofatu; Mihaela A. Calin; Mihaela Radu; Mihail F. Lazarescu
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Paper Abstract

This paper reports on the optical properties of polycrystalline p-type InxGa1-xSb (x equals 0.20) over the wavelength range 15 - 30 micrometers , at room temperature. The material was obtained by direct synthesis from the elements and rapidly crystallized following a particular temperature regime. Transmittance and reflectance measurements were performed at room temperature by using a SPECORD M80 spectrophotometer. From the resulted values we calculated the absorption coefficient (alpha) as a function of the photon energy. Considerations are made concerning the peculiarities involved by the polycrystalline structure and the surface imperfections on the absorption phenomena over the mentioned wavelength range.

Paper Details

Date Published: 2 July 1998
PDF: 5 pages
Proc. SPIE 3405, ROMOPTO '97: Fifth Conference on Optics, (2 July 1998); doi: 10.1117/12.312676
Show Author Affiliations
Cristiana E. A. Grigorescu, Institute of Optoelectronics (Romania)
Stefan A. Manea, National Institute for Materials Physics (Romania)
Michaela F. Logofatu, Univ. of Bucharest (Romania)
Ion I. Munteanu, Univ. of Bucharest (Romania)
B. Logofatu, Univ. of Bucharest (Romania)
Mihaela A. Calin, National Institute of Research and Development for Optoelectronics (Romania)
Mihaela Radu, National Institute of Research and Develoment for Optoelectronics (Romania)
Mihail F. Lazarescu, National Institute for Materials Physics (Romania)


Published in SPIE Proceedings Vol. 3405:
ROMOPTO '97: Fifth Conference on Optics
Valentin I. Vlad; Dan C. Dumitras, Editor(s)

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