Influence of spectral filtering in heterodyne terahertz electro-optic sampling

Authors

  • Daiki Goto Research Center for the Development of Far-Infrared Region, University of Fukui
  • Hiroyuki Kato Research Center for the Development of Far-Infrared Region, University of Fukui
  • Takuro Yasumoto Research Center for Development of Far-Infrared Region, University of Fukui
  • Hideaki Kitahara Research Center for Development of Far-Infrared Region, University of Fukui
  • Takashi Furuya Research Center for Development of Far-Infrared Region, University of Fukui
  • Kohji Yamamoto Research Center for Development of Far-Infrared Region, University of Fukui
  • Elmer Estacio National Institute of Physics, University of the Philippines Diliman
  • Michael I. Bakunov Department of General Physics, University of Nizhny Novgorod
  • Masahiko Tani Research Center for Development of Far-Infrared Region, University of Fukui

Abstract

We have studied influence of the spectral filtering for the efficiency of the heterodyne electro-optic (EO) sampling detection of THz pulsed radiation. Compared to the normal heterodyne EO sampling without spectral filtering, the EO sampling signal ΔI/I has been enhanced by 20% when a short-pass edge filter is inserted in the probe beam pass. The enhancement is explained by the suppression of the spectral component corresponding to the difference frequency generation and the increased contrast of the heterodyne EO sampling signal corresponding to the sum frequency generation.

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Article ID

SPP-2016-2A-01

Section

Optics and Photonics

Published

2016-08-18

How to Cite

[1]
D Goto, H Kato, T Yasumoto, H Kitahara, T Furuya, K Yamamoto, E Estacio, MI Bakunov, and M Tani, Influence of spectral filtering in heterodyne terahertz electro-optic sampling, Proceedings of the Samahang Pisika ng Pilipinas 34, SPP-2016-2A-01 (2016). URL: https://proceedings.spp-online.org/article/view/SPP-2016-2A-01.