Analysis for modulation depth of light pumped THz-SLM based on continuous THz waves

Yin Lin; Yunxin Wang; Dayong Wang; Jie Zhao; Lu Rong; Shu-Feng Lin

doi:10.1117/12.3036404

8 November 2024 Analysis for modulation depth of light pumped THz-SLM based on continuous THz waves

Yin Lin, Yunxin Wang, Dayong Wang, Jie Zhao, Lu Rong, Shu-Feng Lin

Proceedings Volume 13247, Infrared, Millimeter-Wave, and Terahertz Technologies XI; 1324708 (2024) https://doi.org/10.1117/12.3036404
Event: SPIE/COS Photonics Asia, 2024, Nantong, Jiangsu, China

Abstract

Terahertz waves have shown great application potential in many fields, but they are limited by modulation devices. Currently, the dynamic modulator based on optical controlled devices show better performance, but is still far away from the actual application. In this work, a THz SLM system based on bare silicon wafers pumping with a continuous wave laser is built, the modulation performance on different thickness of the wafer and different pumping energy is analyzed. Over 80% modulation depth can be obtained at a pump power density of 2.5W/cm². The modulation of structured patterns can also be implemented in our system.

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

Citation Download Citation

Yin Lin, Yunxin Wang, Dayong Wang, Jie Zhao, Lu Rong, and Shu-Feng Lin "Analysis for modulation depth of light pumped THz-SLM based on continuous THz waves", Proc. SPIE 13247, Infrared, Millimeter-Wave, and Terahertz Technologies XI, 1324708 (8 November 2024); https://doi.org/10.1117/12.3036404

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