Black Phosphorus Based All-Optical-Signal-Processing: Toward High Performances and Enhanced Stability
Black Phosphorus Based All-Optical-Signal-Processing: Toward High Performances and Enhanced Stability
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基于黑磷的全光信号处理：实现高性能和增强稳定性
DOI：
10.1021/acsphotonics.7b00231
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发表时间：
2017
期刊：
影响因子：
7
通讯作者：
Ji Ji
中科院分区：
文献类型：
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作者：
Zheng Jilin;Yang Zhenghua;Si Chen;Liang Zhiming;Chen Xing;Cao Rui;Guo Zhinan;Wang Ke;Zhang Ying;Fan Dianyuan;Zhang Han;Zheng Jilin;Yang Zhenghua;Si Chen;Liang Zhiming;Chen Xing;Cao Rui;Guo Zhinan;Wang Ke;Zhang Ying;Fan Dianyuan;Zhang Han;Zheng Jilin;Ji Ji
二维（2D）黑磷（BP）显示出与厚度相关的直接能带隙，与强的光-物质相互作用和宽带光学响应相关联，使其具有有前途的光电优势，特别是在电信波段。然而，固有BP遭受不可逆氧化，限制了其对真实的设备应用的能力。全光信号处理作为二维材料的一种潜力，对光与物质相互作用的强度有着敏感的依赖性。BP可以作为一种新型的光学介质。本文通过金属离子改性制备了少层BP，并对其进行了抗氧化和抗降解处理，验证了BP涂层微光纤作为光克尔开关和基于四波混频的波长转换器的可行性。波长调谐，长期稳定性，宽带RF频率，和时间重复测量证实，这种光学器件可以作为一个宽带全光处理器。进一步期待…
Two-dimensional (2D) black phosphorus (BP) shows thickness dependent direct energy band-gaps in association with strong light-matter interaction and broadband optical response, rendering it with promising optoelectronic advantages particularly at the telecommunication band. However, intrinsic BP suffers from irreversible oxidization, restricting its competences toward real device applications. As one potential of 2D materials, all-optical signal processing sensitively depends on the strength of light–matter interaction. BP can be utilized as a novel optical medium. Herein, few-layer BP is synthesized with metal-ion-modification against oxidation and degradation, and then the feasibility of BP-coated microfiber as an optical Kerr switcher and a four-wave-mixing-based wavelength converter is demonstrated. The wavelength-tuning, long-term stability, wide-band RF frequency, and time-repeating measurements confirm that this optical device can operate as a broadband all-optical processor. It is further anticipa...