Polarization-sensitive terahertz time-domain spectroscopy system without mechanical moving parts

Mayuri Nakagawa, Makoto Okano, Shinichi Watanabe

研究成果: Article査読

抄録

We report on the measurement of terahertz electric-field vector waveforms by using a system that contains no mechanical moving parts. It is known that two phase-locked femtosecond lasers with different repetition rates can be used to perform time-domain spectroscopy without using a mechanical delay stage. Furthermore, an electro-optic modulator can be used to perform polarization measurements without rotating any polarizers or waveplates. We experimentally demonstrate the combination of these two methods and explain the analysis of data obtained by such a system. Such a system provides a robust platform that can promote the usage of polarization-sensitive terahertz time-domain spectroscopy in basic science and practical applications. For the experimental demonstration, we alter the polarization of a terahertz wave with a polarizer.

本文言語English
ページ(範囲)29421-29434
ページ数14
ジャーナルOptics Express
30
16
DOI
出版ステータスPublished - 2022 8月 1

ASJC Scopus subject areas

  • 原子分子物理学および光学

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