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Proceedings Paper

Ultra-broadband terahertz spectroscopy of InP wafer using coherent heterodyne time domain spectrometer
Author(s): Xiaoyan Xu; Liangliang Zhang; Cunlin Zhang
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Paper Abstract

Indium Phosphide (InP) has attracted great physical interest because of its unique characteristics and is indispensable to both optical and electronic devices. In this paper, we study the optical properties of undoped (100) InP wafer in the ultra-broad terahertz frequency range (0.5-18 THz) by using air-biased-coherent-detection (ABCD) system. It is observed that InP wafer is opaque at the frequencies spanning from 6.7 THz to 12.1 THz. In the frequency regions of 0.8-6.7 THz and 12.1-18 THz it has relatively low absorption coefficient. Meanwhile, the refractive index increases monotonously in the 0.8-6.7 THz region and 12.1-18 THz region. These findings will contribute to the design of InP based component for nonlinear terahertz devices.

Paper Details

Date Published: 12 August 2015
PDF: 7 pages
Proc. SPIE 9625, 2015 International Conference on Optical Instruments and Technology: Terahertz Technologies and Applications, 96250B (12 August 2015); doi: 10.1117/12.2193388
Show Author Affiliations
Xiaoyan Xu, Capital Normal Univ. (China)
Liangliang Zhang, Capital Normal Univ. (China)
Cunlin Zhang, Capital Normal Univ. (China)


Published in SPIE Proceedings Vol. 9625:
2015 International Conference on Optical Instruments and Technology: Terahertz Technologies and Applications
Cunlin Zhang; Xi-Cheng Zhang, Editor(s)

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