Journal
APPLIED OPTICS
Volume 57, Issue 21, Pages 6055-6060Publisher
OPTICAL SOC AMER
DOI: 10.1364/AO.57.006055
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- Agence Nationale de la Recherche (ANR) through LabEx FOCUS [ANR-11-LABX-0013]
- Agence Nationale de la Recherche (ANR) [ANR-11-LABX-0013] Funding Source: Agence Nationale de la Recherche (ANR)
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We present a terahertz (THz) time-domain spectrometer dedicated to polarimetric studies. THz pulses are generated through optical rectification in a < 111 >-cut cubic crystal. The < 111 > crystal cut produces a THz polarization state similar to that of the exciting laser beam. Detection of the THz pulses is performed by electro-optic sampling in a similar crystal, and a dual detection scheme allows us to measure simultaneously the two polarization components of the THz beam. We experimentally illustrate that the polarization of the THz beam can be adjusted by adjusting the laser polarization. This technique alleviates the need for a polarization controller at THz frequencies. (C) 2018 Optical Society of America
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