Optimised quartz half-wave plate for broadband terahertz operation

Yaroslav V. Grachev; Andrei Gorodetsky; Nikolay S. Balbekin; Maksim S. Kulya; Bogdan Sokolenko; Nikolay V. Petrov

doi:10.1117/12.2602844

13 October 2021 Optimised quartz half-wave plate for broadband terahertz operation

Yaroslav V. Grachev, Andrei Gorodetsky, Nikolay S. Balbekin, Maksim S. Kulya, Bogdan Sokolenko, Nikolay V. Petrov

Proceedings Volume 11906, Infrared, Millimeter-Wave, and Terahertz Technologies VIII; 119061N (2021) https://doi.org/10.1117/12.2602844
Event: SPIE/COS Photonics Asia, 2021, Nantong, JS, China

Conference Poster

Abstract

In this contribution, we discuss the features of design and polarimetric inspection of terahertz achromatic waveplates. The design of the crystalline quartz half-wave plate was performed taking into account the ellipticity and the introduced phase difference between the orthogonal components of the output radiation polarization vector. The designed waveplate are relatively thin, work equally efficiently in the frequency range from 0.4 to 1.4 THz, and, most importantly, are cheap to manufacture. The modification of the experimental terahertz time-domain spectroscopy polarimetric setup involving direct waveform detection is proposed. The proposed polarimetry THz time-domain spectrometer with electro-optic detection shows parasitical signals absence and easier measurement procedure.

Citation Download Citation

Yaroslav V. Grachev, Andrei Gorodetsky, Nikolay S. Balbekin, Maksim S. Kulya, Bogdan Sokolenko, and Nikolay V. Petrov "Optimised quartz half-wave plate for broadband terahertz operation", Proc. SPIE 11906, Infrared, Millimeter-Wave, and Terahertz Technologies VIII, 119061N (13 October 2021); https://doi.org/10.1117/12.2602844

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