Few‐Layer Topological Insulator for All‐Optical Signal Processing Using the Nonlinear Kerr Effect
Source abstract
Abstract
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.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Photonic and Optical Devices · Photonic Crystals and Applications · Advanced Fiber Laser Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
SZU‐NUS Collaborative Innovation Centre for Optoelectronic Science and Technology, and Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province Shenzhen University Shenzhen 518060 China
Key Laboratory for Micro–Nano Optoelectronic Devices of Ministry of Education School of Physics and Electronics Hunan University Changsha 410082 China
Institute of Functional Nano and Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon‐Based Functional Materials and Devices, and Collaborative Innovation Center of Suzhou Nano Science and Technology Soochow University Suzhou 215123 China
State Key Laboratory of Electronic Thin Films and Integrated Devices School of Optoelectronic Information University of Electronic Science and Technology of China (UESTC) Chengdu 610054 China
Funding
National 973 Program of China · National Natural Science Foundation of China
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