Giant Dual-Mode Graphene-Based THz Modulator
| Autor: | Li-Guo Zhu, Du Lianghui, Jiang Li, Pei-Ren Tang |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Materials science
business.industry Terahertz radiation Graphene 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Pulse (physics) law.invention 010309 optics Amplitude modulation Interference (communication) law Logic gate 0103 physical sciences Broadband Optoelectronics 0210 nano-technology business Frequency modulation |
| Zdroj: | 2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). |
| DOI: | 10.1109/irmmw-thz.2019.8874307 |
| Popis: | We report a high-performance terahertz (THz) modulator with dual-operation mode. For the pulse operation mode, the proposed THz modulator has the advantage of high modulation depth (MD) and can operate in a broadband frequency range. We have experimentally achieved a MD larger than 90% for the fifth-order pulse THz echo at 0.8 THz and the MD stays larger than 75% in a broadband frequency range larger than 1 THz. While, for the coherent operation mode, the Fabry-Perot (F-P) interference effect has been taken into consideration and a MD larger than 75% at 0.76 THz has also been realized. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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