Optical Measurement for Solid- and Liquid-Phase Sb2Te3 around Its Melting Point

We have developed a system for measuring the complex refractive index of liquid- and solid-phase chalcogenide around their melting points. The system consists of a spectroscopic ellipsometer, an infrared heating system, and prism optics. As a container for the chalcogenide, we use a customized quart...

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Published inJpn J Appl Phys Vol. 52; no. 11; pp. 118001 - 118001-3
Main Authors Kuwahara, Masashi, Endo, Rie, Tsutsumi, Kouichi, Morikasa, Fukuyoshi, Tsuruoka, Tohru, Fukaya, Toshio, Suzuki, Michio, Susa, Masahiro, Endo, Tomoyoshi, Tadokoro, Toshiyasu
Format Journal Article
LanguageEnglish
Published The Japan Society of Applied Physics 01.11.2013
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Summary:We have developed a system for measuring the complex refractive index of liquid- and solid-phase chalcogenide around their melting points. The system consists of a spectroscopic ellipsometer, an infrared heating system, and prism optics. As a container for the chalcogenide, we use a customized quartz cell, evacuated to several pascal level to avoid sample degradation. We adopted a measurement configuration that uses access from the bottom side, because a mirror-like surface which is necessary for optical measurement was naturally and easily created at the container bottom by gravity. We succeeded in observing the remarkable difference on the indices between liquid- and solid-phase Sb 2 Te 3 .
Bibliography:(Color online) Schematically cross-sectional view of a developed system in (a). The photograph of a whole system (b) and cassette type sample holder (c). (Color online) The procedure of sample preparation (a). The photograph of Sb 2 Te 3 sample sealed in quartz cell (b). (Color online) Measured $\psi$ and $\Delta$ for solid (blue lines) and liquid (red lines) phase. Dashed black lines are theoretical curves calculated from one Lorentz model. (Color online) Complex refractive indices of $n$ and $k$ for solid- and liquid-phase Sb 2 Te 3 from 300 to 1000 nm in wavelength.
ISSN:0021-4922
1347-4065
DOI:10.7567/JJAP.52.118001