Electronically driven THz spatial light modulator working in transmission mode

Jianhui Wu; He Ma; Dai Zhang; Yuan Li; Jianhua Hao; Lu Rong; Dayong Wang; Xinping Zhang

doi:10.1117/12.3048031

13 December 2024 Electronically driven THz spatial light modulator working in transmission mode

Jianhui Wu, He Ma, Dai Zhang, Yuan Li, Jianhua Hao, Lu Rong, Dayong Wang, Xinping Zhang

Proceedings Volume 13495, AOPC 2024: Terahertz Technology and Applications; 134950I (2024) https://doi.org/10.1117/12.3048031
Event: Applied Optics and Photonics China 2024 (AOPC2024), 2024, Beijing, China

Abstract

The terahertz spatial light modulator (THz SLM) is a crucial device for the dynamic modulation of terahertz waves. It is beneficial in the fields of THz imaging and photonic computing. For example, we could encode and perform compressive sensing using THz SLMs. Compared with THz SLMs working in the reflective mode, the transmission mode THz SLMs (T-THz SLMs) show an obvious advantage in insertion loss. Due to the ultra-low insertion loss, several T-SLMs could be used in series, greatly facilitating its application of optical computing. In this study, we designed an electrically driven T-THz SLM, which the MEMS approach could fabricate. To enhance the performance of the T-THz SLM, the T-THz SLM was designed to be prepared for freestanding ultra-thin silicon nitride windows. Owing to the merits of ultra-low thermal capacitance and high transmission of the devices, a high-speed, low-power-consumption, low-insertion-loss, broadband T-THz SLM would be realized.

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

Citation Download Citation

Jianhui Wu, He Ma, Dai Zhang, Yuan Li, Jianhua Hao, Lu Rong, Dayong Wang, and Xinping Zhang "Electronically driven THz spatial light modulator working in transmission mode", Proc. SPIE 13495, AOPC 2024: Terahertz Technology and Applications, 134950I (13 December 2024); https://doi.org/10.1117/12.3048031

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