Simultaneous measurement of orthogonally polarized terahertz for fiber-coupled time-domain spectroscopy

Authors

Rayko I. Stantchev ⋅ TW Department of Physics, National Sun Yat-sen University, Taiwan
Huiliang Ou ⋅ GB Department of Physics, University of Warwick, UK
Mykhaylo Semtsiv ⋅ DE Department of Physics, Humboldt University, Germany
W. Ted Masselink ⋅ DE Department of Physics, Humboldt University, Germany
James Lloyd-Hughes ⋅ GB Department of Physics, University of Warwick, UK
Emma Pickwell-MacPherson ⋅ GB Department of Physics, University of Warwick, UK

Abstract

We demonstrate the emission and detection of orthogonally polarized terehertz pulses simultaneously in a fiber-coupled time-domain system. Here, a multi-pixel emitter multiplexes the s- and p-states with different modulation frequencies and the detected signal is demultiplexed with post-processing. A commercial photoconductive detector is used and the the photoconductive emitter is made using standard lithographic techniques. This work can significantly improve the speed of polarization-resolved THz spectroscopy and imaging, so we demonstrated its efficiency by imaging an anisotropic metamaterial and characterizing birefringent crystal.

About the Speaker

Rayko I. Stantchev, Department of Physics, National Sun Yat-sen University, Taiwan

Rayko Ivanov Stantchev was born in Bulgaria. He then moved to the United Kingdom at a young age where he went to school and later to the University of Exeter where he obtained a Bachelor's degree in Maths and Physics combined honours in 2013. Immediately after, in Exeter he started a PhD in experimental physics working with a THz spectrometer and spatial light modulators. His PhD focused on the experimental implementation of non-invasive THz imaging using single-element detectors, with the addition of adaptive undersampling techniques.
Upon completion of his thesis in 2017, he moved to Hong Kong for a postdoc with the THz group of E. Pickwell-MacPherson in the Chinese University of Hong Kong. In 2021, the THz group in Hong Kong completely moved to the UK at the University of Warwick and Rayko was based there until August 2022. He then moved to Taiwan to be an assistant professor at the National Sun Yat-sen University where he is currently at, whilst holding an honorary research fellow position at the University of Warwick.

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Issue

2024: Proceedings of the 42nd Samahang Pisika ng Pilipinas Physics Conference

Article ID

SPP-2024-INV-1J-03

Section

Optics and Photonics

Published

2024-07-03

How to Cite

[1]

RI Stantchev, H Ou, M Semtsiv, WT Masselink, J Lloyd-Hughes, and E Pickwell-MacPherson, Simultaneous measurement of orthogonally polarized terahertz for fiber-coupled time-domain spectroscopy, Proceedings of the Samahang Pisika ng Pilipinas 42, SPP-2024-INV-1J-03 (2024). URL: https://proceedings.spp-online.org/article/view/SPP-2024-INV-1J-03.