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Proceedings Paper • new

Compact terahertz spectrometer based on disordered rough surfaces
Author(s): Tao Yang; Bing Jiang; Jia-cheng Ge; Yong-yuan Zhu; Xing-ao Li; Wei Huang
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Paper Abstract

In this paper, a compact spectrometer based on disordered rough surfaces for operation in the terahertz band is presented. The proposed spectrometer consists of three components, which are used for dispersion, modulation and detection respectively. The disordered rough surfaces, which are acted as the dispersion component, are modulated by the modulation component. Different scattering intensities are captured by the detection component with different extent of modulation. With a calibration measurement process, one can reconstruct the spectra of the probe terahertz beam by solving a system of simultaneous linear equations. A Tikhonov regularization approach has been implemented to improve the accuracy of the spectral reconstruction. The reported broadband, compact, high-resolution terahertz spectrometer is well suited for portable terahertz spectroscopy applications.

Paper Details

Date Published: 12 January 2018
PDF: 8 pages
Proc. SPIE 10623, 2017 International Conference on Optical Instruments and Technology: IRMMW-THz Technologies and Applications, 1062308 (12 January 2018); doi: 10.1117/12.2292960
Show Author Affiliations
Tao Yang, Nanjing Univ. of Posts and Telecommunications (China)
Bing Jiang, Nanjing Univ. of Posts and Telecommunications (China)
Jia-cheng Ge, Nanjing Univ. of Posts and Telecommunications (China)
Yong-yuan Zhu, Nanjing Univ. (China)
Xing-ao Li, Nanjing Univ. of Posts and Telecommunications (China)
Wei Huang, Nanjing Univ. of Posts and Telecommunications (China)


Published in SPIE Proceedings Vol. 10623:
2017 International Conference on Optical Instruments and Technology: IRMMW-THz Technologies and Applications
Cunlin Zhang; Xi-Cheng Zhang; Zhiming Huang; Liquan Dong, Editor(s)

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