期刊
ADVANCED OPTICAL MATERIALS
卷 3, 期 12, 页码 1769-1778出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adom.201500347
关键词
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资金
- National 973 Program of China [2012CB315701]
- National Natural Science Foundation of China [61222505, 61205091, 61435010]
Topological insulators (TIs) are a new quantum phase of matter with topologically protected surface metallic states inside the insulating bulk states. Due to their unique single Dirac cone surface state, relatively low sheet resistance, and broadband optical operation, they have attracted enormous interests in both electronics and optics. Out of those above-mentioned applications, electronic devices are seeking most attention until now. Here the experimental prototype for light processing device, TI-coated microfiber (TCM), is demonstrated. Owing to the large Kerr coefficient of TI, TCM could operate as an effective optical Kerr switcher and broadband wavelength converter at the telecommunication band. This device could be well integrated with current high-speed fiber optic communication networks and might well provide an approach for all-optical signal processing through nonlinear processes. It is anticipated that few-layer topological insulator might afford new opportunities for nonlinear photonic applications, especially in all-optical routing, optical multiplication frequency, etc.
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