Title :
Graphene based ultrafast all-optical terahertz modulator
Author :
Qi-Ye Wen ; Dan-Dan Sun ; Zhi Chen ; Wei Tian ; Hai-Tao Liu ; Qing-Hui Yang ; Yu-Lan Jing ; Huai-Wu Zhang
Author_Institution :
State Key Lab. of Electron. Thin films & Integrated Devices, Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
In this presentation, we proposed an all-optical broadband terahertz (THz) modulator based on single-layer graphene (SLG) on silicon or germanium. By illuminating the film with 808nm CW laser, the THz transmission decreased significantly. The modulation speed was measured at 340GHz to be as high as 0.5 MHz. This modulator has huge potential for real application.
Keywords :
germanium; graphene; modulators; silicon; CW laser; SLG; THz transmission; all-optical broadband terahertz modulator; frequency 340 GHz; germanium; silicon; single-layer graphene; ultrafast all-optical terahertz modulator; Graphene; Modulation; Optical pumping; Pump lasers; Silicon; Substrates; Graphene; Modulator; Terahertz;
Conference_Titel :
Millimeter Waves and THz Technology Workshop (UCMMT), 2013 6th UK, Europe, China
Conference_Location :
Rome, Italy
DOI :
10.1109/UCMMT.2013.6641539
