Journal of Terahertz Science and Electronic Information Technology , Volume. 22, Issue 2, 160(2024)

Spintronic terahertz sensing of biological molecules based on CMOS controllable metamaterials

CHEN Yaxuan1,2,3, KONG Rurua1, LI Zhaoying1,2,3, SUN Tong1,2,4, XIONG Fan1,2,3, SUN Yuna1,5, LIU Yongshana1, ZHANG Youguangb6, BAI Zhongyang2,3,6、*, and WEN Lianggong1,2,3
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
  • 3[in Chinese]
  • 4[in Chinese]
  • 5[in Chinese]
  • 6[in Chinese]
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    The sensing and detection of the biomolecule Terahertz (THz) spectrum fingerprint is performed based on Complementary Metal Oxide Semiconductor(CMOS) controllable metamaterials, using a Spintronic THz Emitter device. The spintronic THz spectrum fingerprint of three different biological samples were benchmarked with results using THz photoconductive antennas. The results show that the feasibility of measuring biological samples with spin terahertz source is verified. At the same time, a frequency based biomolecular THz sensing scheme is proposed by utilizing CMOS controllable metamaterials. Finite element models are built based on the performance test and the biosensing process of the CMOS controllable metamaterial devices. Five CMOS controllable metamaterials were designed with center frequencies related to the absorption peaks of the biomolecules under test. The simulation results show that the resonance frequency has a red shift with the increase of voltage, and the maximum red shift is up to 40 GHz. This paper provides experimental and theoretical foundations for building miniaturized and integrated biomolecular THz sensing systems.

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    CHEN Yaxuan, KONG Rurua, LI Zhaoying, SUN Tong, XIONG Fan, SUN Yuna, LIU Yongshana, ZHANG Youguangb, BAI Zhongyang, WEN Lianggong. Spintronic terahertz sensing of biological molecules based on CMOS controllable metamaterials[J]. Journal of Terahertz Science and Electronic Information Technology , 2024, 22(2): 160

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    Paper Information

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    Received: Dec. 28, 2022

    Accepted: --

    Published Online: Aug. 14, 2024

    The Author Email: BAI Zhongyang (:baizhongyang@buaa.edu.cn)

    DOI:10.11805/tkyda2022249

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