期刊
ADVANCED OPTICAL MATERIALS
卷 7, 期 12, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adom.201900060
关键词
2D materials; all-optical devices; information loading; photothermal conversion
资金
- National Natural Science Fund [61875138, 61705140, 61435010, 61805146, 6181101252]
- China Postdoctoral Science Foundation [2018M643165]
- Science and Technology Planning Project of Guangdong Province [2016B050501005]
- Science and Technology Innovation Commission of Shenzhen [KQTD2015032416270385]
- Postgraduate Innovation Development Fund Project of Shenzhen University [PIDFP-410 ZR2018004]
- Ph.D. Start-up Fund of the Natural Science Foundation of Guangdong Province [2017A030310143]
- Science and Technology Development Fund, Macao S.A.R., China [007/2017/A1]
All-optical modulators, where one light modulates the parameters of another light (intensity, phase, frequency, etc.) without external electronic control, have drawn extraordinary attention in all-optical information processing. In this contribution, by taking advantage of the two-pass structure of Michelson interferometer and the strong photothermal conversion efficiency of MXene nanomaterials, an all-optical modulator is demonstrated with a modulation depth of >27 dB, a free spectrum range of 16.8 nm and a pump-induced phase shift slope of 0.043 pi mW(-1). Moreover, the all-optical modulator is successfully employed to switch on/off the intensity of the signal light and load information from one channel to another with comparable response time and baudrate. It is believed that the MXene-based all-optical modulator will open a door to practical applications of 2D materials-based all-optical devices in all-optical signal processing.
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