Abstract
In this article we report an experimental investigation of the far-infrared properties of several nonlinear crystals, LiNbO3, LiTaO3, ZnTe and CdTe. Using Terahertz Time-Domain Spectroscopy (THz-TDS) we have measured the complex frequency response, i.e. both index of refraction and absorption up to 3 THz (100 cm−1) for the electro-optic crystals at room temperature. The single Lorentzian oscillator model is used to describe the aquired data. Additional resonance features are observed, especially in the II-VI compounds.
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Schall, M., Helm, H. & Keiding, S.R. Far Infrared Properties of Electro-Optic Crystals Measured by THz Time-Domain Spectroscopy. International Journal of Infrared and Millimeter Waves 20, 595–604 (1999). https://doi.org/10.1023/A:1022636421426
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DOI: https://doi.org/10.1023/A:1022636421426