Analysis for modulation depth of light pumped THz-SLM based on continuous THz waves
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/cm<sup>2</sup>. The modulation of structured patterns can also be implemented in our system.
Authors
- Yunxin Wang (ORCID: https://orcid.org/0000-0003-1550-5012)
- Shufeng Lin (ORCID: https://orcid.org/0000-0002-4547-597X)
- Lü Rong (ORCID: https://orcid.org/0000-0003-4614-6411)
- Jie Zhao (ORCID: https://orcid.org/0000-0001-8880-1256)
- Dayong Wang
- Yin Lin
Institutions
- Beijing University of Technology (CN)
- Shanghai Institute of Measurement and Testing Technology (CN)
Publication Details
- Published
- 2024-11-08
- DOI
- https://doi.org/10.1117/12.3036404
- Primary Topic
- Photonic and Optical Devices
- Type
- article
- Field-Weighted Citation Impact
- 0.00