Influence of Thermal Annealing on Terahertz Dielectric Properties of ZnGeP2 Crystals
The influence of thermal annealing on the dielectric properties of ZnGeP 2 crystals in the terahertz frequency range is studied by terahertz time domain spectroscopy. The effect of “transformation” of a positive birefringent ZnGeP 2 crystal into a negative one is found upon transition from the IR to...
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Published in | Russian physics journal Vol. 64; no. 8; pp. 1513 - 1516 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
New York
Springer US
01.12.2021
Springer Nature B.V |
Subjects | |
Online Access | Get full text |
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Summary: | The influence of thermal annealing on the dielectric properties of ZnGeP
2
crystals in the terahertz frequency range is studied by terahertz time domain spectroscopy. The effect of “transformation” of a positive birefringent ZnGeP
2
crystal into a negative one is found upon transition from the IR to the terahertz frequency range. A decrease of the absorption coefficients and refractive indices in the frequency range of 0.25–2.5 THz after annealing of the crystals at temperatures of 575–700°C for 300–400 hours is also revealed. |
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ISSN: | 1064-8887 1573-9228 |
DOI: | 10.1007/s11182-021-02484-2 |