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A new type of electro‐optic effect in semiconducting WO 3
Author(s) -
Salje E.
Publication year - 1974
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889874010545
Subject(s) - electric field , absorption edge , absorption (acoustics) , attenuation coefficient , perpendicular , materials science , enhanced data rates for gsm evolution , modulation (music) , optics , spectral line , absorption spectroscopy , field (mathematics) , condensed matter physics , molecular physics , optoelectronics , chemistry , physics , band gap , telecommunications , geometry , mathematics , quantum mechanics , astronomy , computer science , acoustics , pure mathematics
Crystals of semiconducting WO 3 exhibit a variation of absorption coefficient if an electric field is applied perpendicular to the direction of propagation of light. The field strengths used were extremely small. The effect is observed within a narrow spectral region near the fundamental absorption edge at 2.58 eV and the modulation frequency is less than 10 Hz. The temperature dependence of the absorption spectra is presented.