Atomic-layer molybdenum sulfide optical modulator for visible coherent light

• DOI: 10.1038/srep11342
• Publication Date: 2015-06-12T13:38:05Z
• Authors: Yuxia Zhang; Shuxian Wang; Haohai Yu; Huaijin Zhang; Yanxue Chen; Liangmo Mei; Alberto Di Lieto; Mauro Tonelli; Jiyang Wang
• Keywords: Visible spectrum

Abstract Coherent light sources in the visible range are playing important roles our daily life and modern technology, since about 50% of capability human brains is devoted to processing visual information. Visible lasers can be achieved by nonlinear optical process infrared direct lasing gain materials latter has advantages aspects compactness, efficiency, simplicity, etc. However, due lack modulators, directly generated with only a material constrained continuous-wave operation. Here, we demonstrated fabrication modulator pulsed based on atomic-layer molybdenum sulfide (MoS 2 ), ultrathin two-dimensional 9–10 layers. By employing absorption modulator, orange, red deep were generated. Besides, present MoS broadband modulating properties simple preparation process. The results experimentally verify theoretical prediction for low-dimensional optoelectronic devices wavelength region may open an attractive avenue removing stumbling block further development lasers.