Optical properties and birefringence in LiInS2 in the terahertz frequency range

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2014
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Wang, Shanpeng
Tao, Xutang
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Optical Materials Express. 2014, 4(4), pp. 575-586. ISSN 2159-3930. eISSN 2159-3930. Available under: doi: 10.1364/OME.4.000575
Zusammenfassung

The birefringence of LiInS2 (LIS) crystals in the THz frequency region is investigated by THz time-domain spectroscopy (THz-TDS). The experimental results indicate that LIS has large birefringence and low absorption in the THz frequency region. The optical properties of LIS are quantitatively determined. A sharp absorption caused by a TO-phonon resonance is observed at around 1.70 THz when the Z-axis is parallel to the polarization of the incident THz wave. A temporal separation of the transmitted THz pulses with different polarization components is realized by changing the orientation of the LIS crystal with respect to the polarization of the incident THz pulses. By controlling the relative phase and amplitude of the temporally separated THz pulses, THz polarization pulse shaping caused by birefringence in LIS crystal is demonstrated.

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Fachgebiet (DDC)
530 Physik
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Terahertz Spectroskopie, nicht-lineare optische Materialien
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ISO 690WANG, Shanpeng, Qijun LIANG, Xutang TAO, Thomas DEKORSY, 2014. Optical properties and birefringence in LiInS2 in the terahertz frequency range. In: Optical Materials Express. 2014, 4(4), pp. 575-586. ISSN 2159-3930. eISSN 2159-3930. Available under: doi: 10.1364/OME.4.000575
BibTex
@article{Wang2014Optic-26783,
  year={2014},
  doi={10.1364/OME.4.000575},
  title={Optical properties and birefringence in LiInS<sub>2</sub> in the terahertz frequency range},
  number={4},
  volume={4},
  issn={2159-3930},
  journal={Optical Materials Express},
  pages={575--586},
  author={Wang, Shanpeng and Liang, Qijun and Tao, Xutang and Dekorsy, Thomas}
}
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