Synthesis of Bi2Se3 and its application to sensitive and fast THz detection

Chao Tang; Koichi Tamura; Aoi Hamada; Hiroyoshi Kudo; Shinnosuke Uchigasaki; Yuma Takida; Hiroaki Minamide; Hirokazu Fukidome; Tsung-Tse Lin; Akira Satou; Taiichi Otsuji

doi:10.1117/12.3028676

1 October 2024 Synthesis of Bi₂Se₃ and its application to sensitive and fast THz detection

Chao Tang, Koichi Tamura, Aoi Hamada, Hiroyoshi Kudo, Shinnosuke Uchigasaki, Yuma Takida, Hiroaki Minamide, Hirokazu Fukidome, Tsung-Tse Lin, Akira Satou, Taiichi Otsuji

Author Affiliations +

Proceedings Volume 13141, Terahertz Emitters, Receivers, and Applications XV; 1314107 (2024) https://doi.org/10.1117/12.3028676
Event: Optical Engineering + Applications, 2024, San Diego, California, United States

Abstract

This study presents advancements in the synthesis and application of Bi₂Se₃, a topological van der Waals crystal, for terahertz (THz) detection. High-quality β-Bi₂Se₃ crystals were synthesized using the Selenium Vapor-Induced Supersaturated Solution Method (SVI-SSM), ensuring stoichiometric integrity. Heterostructures of Bi₂Se₃ were constructed using hot transfer methods, leading to the fabrication of a rectenna THz detector. Utilizing a 0.95-THz injection-seeded THz parametric generator (is-TPG) as the light source for pulsed-continuous wave (CW) THz waves, THz detection experiments were conducted. The results demonstrated a fast response time of 200 ps and a sensitivity of 40 mV/W with the THz detector, which was maintained even under zero bias conditions. These findings lay the foundation for developing passive THz detection systems with minimal energy consufmption, holding significant promise for advancing THz communication technology.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Chao Tang, Koichi Tamura, Aoi Hamada, Hiroyoshi Kudo, Shinnosuke Uchigasaki, Yuma Takida, Hiroaki Minamide, Hirokazu Fukidome, Tsung-Tse Lin, Akira Satou, and Taiichi Otsuji "Synthesis of Bi₂Se₃ and its application to sensitive and fast THz detection", Proc. SPIE 13141, Terahertz Emitters, Receivers, and Applications XV, 1314107 (1 October 2024); https://doi.org/10.1117/12.3028676

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