Efficient absorption by monolayer graphene in microring resonator

6th conference on Advances in Optoelectronics and Micro/nano-optics

Liu, Ziyu^1

Qian Xuesen Laboratory of Space Technology, China Academy of Space Technology, Beijing

100094, China^1

关键词: Absorption rates;    Detection efficiency;    Frequency-selective;    Microring resonator;    Photoelectric conversion;    Spectrum detection;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/844/1/012020/pdf
DOI  :  10.1088/1742-6596/844/1/012020

来源: IOP

【 摘 要 】

We demonstrate a graphene photodetector based on a SOI microring resonator. The absorption of the graphene was enhanced by the resonating, so to improve the detection efficiency by 5 times. The impact of graphene's position and length on the absorption rate was also been studied. The frequency selective effect shows the potential on spectrum detection and WDM photoelectric conversion.