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

Naoya Yasumatsu, Atsushi Kasatani, Kenichi Oguchi, Shinichi Watanabe

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

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
Volume7
Issue number9
DOIs
Publication statusPublished - 2014 Sep 1

Fingerprint

Polarimeters
polarimeters
Electrooptical effects
electro-optics
high speed
Modulation
Polarization
modulation
Modulators
modulators
Terahertz waves
polarization modulation
Electric delay lines
delay lines
polarization
angular resolution
waveforms
sampling
Sampling
probes

ASJC Scopus subject areas

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

Cite this

High-speed terahertz time-domain polarimeter based on an electro-optic modulation technique. / Yasumatsu, Naoya; Kasatani, Atsushi; Oguchi, Kenichi; Watanabe, Shinichi.

In: Applied Physics Express, Vol. 7, No. 9, 092401, 01.09.2014.

Research output: Contribution to journalArticle

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