Terahertz wave detection by heterodyne EO sampling using position sensitive detector

Authors

  • Syougo Azuma Research Center for the Development of Far-Infrared Region, University of Fukui
  • Tomohiro Nagase Research Center for the Development of Far-Infrared Region, University of Fukui
  • Shinpei Ozawa Research Center for the Development of Far-Infrared Region, University of Fukui
  • Stefan Funkner Research Center for the Development of Far-Infrared Region, University of Fukui
  • Gudrun Niehues Research Center for the Development of Far-Infrared Region, University of Fukui
  • Atsushi Iwamae Research Center for the Development of Far-Infrared Region, University of Fukui
  • Kohji Yamamoto Research Center for the Development of Far-Infrared Region, University of Fukui
  • Takashi Furuya Faculty of Engineering, University of Fukui
  • Elmer Estacio National Institute of Physics, University of the Philippines Diliman
  • Michael I. Bakunov University of Nizhny Novgorod
  • Masahiko Tani Research Center for the Development of Far-Infrared Region, University of Fukui

Abstract

We have recently reported a new electro-optic (EO) sampling scheme, the “heterodyne EO sampling,†where the EO sampling signal is detected as direct intensity changes in the probe beam without using any polarization optics. The heterodyne EO signal has a spatial distribution originating from the non-collinear phase-matching process: i) the signal polarity is reversed on the opposite half of the sampling beam cross section and ii) THz frequency components are detected angularly resolved in proportion to the frequency. Utilizing these spatial distribution characteristics of the heterodyne EOS signal, we proposed and demonstrated a detection method using Position Sensitive Detector (PSD). The results show that the heterodyne EOS using a PSD is a promising technique to extend the detection bandwidth.

Proceedings SPP 2014 Cover

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Published

2014-10-17

Issue

2014: Proceedings of the 32nd Samahang Pisika ng Pilipinas Physics Congress

Section

Condensed Matter Physics

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All other associated economic and moral rights as granted by the Intellectual Property Code of the Philippines are maintained by the Authors.

How to Cite

[1]
“Terahertz wave detection by heterodyne EO sampling using position sensitive detector”, Proc. SPP, vol. 32, no. 1, pp. SPP2014–2A, Oct. 2014, Accessed: Mar. 28, 2026. [Online]. Available: https://proceedings.spp-online.org/article/view/1799