Title :
Graphene based ultrafast all-optical terahertz modulator
Author :
Qi-Ye Wen ; Dan-Dan Sun ; Zhi Chen ; Huai-Wu Zhang ; Kai Dong ; Yu-Lan Jing
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 THz modulator based on single-layer graphene (SLG) on silicon. By illuminating the film with 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 :
elemental semiconductors; graphene; integrated optics; microwave photonics; optical films; optical modulation; silicon; terahertz wave devices; terahertz wave spectra; C-Si; CW laser; SLG on silicon; THz transmission; all-optical broadband THz modulator; film; frequency 340 GHz; graphene based ultrafast all-optical terahertz modulator; modulation speed; single-layer graphene; Bandwidth; Frequency control; Frequency measurement; Frequency modulation; Measurement by laser beam; Performance evaluation;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on
Conference_Location :
Mainz
DOI :
10.1109/IRMMW-THz.2013.6665634
