High-speed terahertz time-domain polarimeter based on an electro-optic modulation technique

Naoya Yasumatsu, Atsushi Kasatani, Kenichi Oguchi, Shinichi Watanabe

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We present a method of developing a high-speed terahertz time-domain polarimeter based on an electro-optic sampling setup, which consists of a rapid polarization analysis of the probe optical beam within 1ms with an angular resolution of ∼100 mrad using an electro-optic modulator (EOM). A fast optical delay line enabled us to obtain the vector waveform of the terahertz pulse within 100 ms. The setup does not utilize a manual/mechanical rotational stage, but the use of the polarization modulation technique employing the EOM ensures a high-speed and high-accuracy measurement of the state of polarization of terahertz waves.

Original languageEnglish
Article number092401
JournalApplied Physics Express
Issue number9
Publication statusPublished - 2014 Sep 1


ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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