The limit of spectral resolution in THz time-domain spectroscopy

Samuel P. Mickan; Jingzhou Xu; Jesper Munch; X.-C. Zhang; Derek Abbott

doi:10.1117/12.530386

25 March 2004 The limit of spectral resolution in THz time-domain spectroscopy

Samuel P. Mickan, Jingzhou Xu, Jesper Munch, X.-C. Zhang, Derek Abbott

Proceedings Volume 5277, Photonics: Design, Technology, and Packaging; (2004) https://doi.org/10.1117/12.530386
Event: Microelectronics, MEMS, and Nanotechnology, 2003, Perth, Australia

Abstract

This paper describes a study conducted into the limit on spectral resolution due to the dynamic range of a T-ray spectrometer. The pulsed nature of terahertz time-domain spectroscopy (THz-TDS) sets a fundamental limit on its spectral resolution. The spectral resolution of THz-TDS can be improved by increasing the duration of the temporal measurement, but is limited by the dynamic range of the system in the time-domain. This paper presents calculations and experimental results relating the temporal dynamic range of a THz-TDS system to its spectral resolution. We discuss three typical pulsed terahertz sources in terms of their dynamic range and hence achievable spectral resolution.

Citation Download Citation

Samuel P. Mickan, Jingzhou Xu, Jesper Munch, X.-C. Zhang, and Derek Abbott "The limit of spectral resolution in THz time-domain spectroscopy", Proc. SPIE 5277, Photonics: Design, Technology, and Packaging, (25 March 2004); https://doi.org/10.1117/12.530386

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