Design and simulation of a wideband on-chip terahertz spectrometer

Hao Wu; Bo-Wen Fan; Jiang-Qiao Ding; Zhao-Hang Peng; Qiang Zhi; Zheng Wang; Jing Li; Sheng-Cai Shi

doi:10.1117/12.3035845

8 November 2024 Design and simulation of a wideband on-chip terahertz spectrometer

Hao Wu, Bo-Wen Fan, Jiang-Qiao Ding, Zhao-Hang Peng, Qiang Zhi, Zheng Wang, Jing Li, Sheng-Cai Shi

Proceedings Volume 13247, Infrared, Millimeter-Wave, and Terahertz Technologies XI; 132470F (2024) https://doi.org/10.1117/12.3035845
Event: SPIE/COS Photonics Asia, 2024, Nantong, Jiangsu, China

Conference Poster

Abstract

Superconducting on-chip spectrometers have both imaging and spectroscopic capabilities. In general, the broadband signal coupled from an antenna goes through frequency dispersion via a series of filters that are connected with superconducting detectors like kinetic inductance detectors or bolometers. The filters have the same relative bandwidth, which determines the frequency resolution of the spectrometer. We here present the design and simulations on the twin-slot antenna, CPW-to-microstrip transition, and a ten-channel filter-bank of a verification-stage terahertz spectrometer chip at 350 GHz. The simulation results of the antenna and transition showed low return loss, and the simulation results of the ten-channel filter-bank show that each channel has good readout independence and coupling strength. These designs and simulations can provide assistance for the future development of terahertz on-chip spectrometer.

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

Citation Download Citation

Hao Wu, Bo-Wen Fan, Jiang-Qiao Ding, Zhao-Hang Peng, Qiang Zhi, Zheng Wang, Jing Li, and Sheng-Cai Shi "Design and simulation of a wideband on-chip terahertz spectrometer", Proc. SPIE 13247, Infrared, Millimeter-Wave, and Terahertz Technologies XI, 132470F (8 November 2024); https://doi.org/10.1117/12.3035845

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