journal article·2016-08

Solvothermal Synthesis and Ultrafast Photonics of Black Phosphorus Quantum Dots

Yanhua Xu, Zhiteng Wang, Zhinan Guo, Hao Huang, Quanlan Xiao, Han Zhang, Xue‐Feng Yu

Advanced Optical Materials· Volume 4· Issue 8
Publisher page

Abstract

Ultrasmall black phosphorus quantum dots (BPQDs) with an average size of 2.1 ± 0.9 nm are synthesized by using a solvothermal method in a N‐methyl‐2‐pyrrolidone solution. Verified by femto‐second laser Z‐scan measurement, BPQDs exhibit excellent nonlinear optical response with a modulation depth of about 36% and a saturable intensity of about 3.3 GW cm−2. By using BPQDs as optical saturable absorber, the ultrashort pulse with a pulse duration of about 1.08 ps centered at a wavelength of 1567.5 nm is generated in mode‐locked fiber laser. These results suggest that BPQDs may be developed as another kind of promising nanomaterial for ultrafast photonics.
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Research context

OpenAlex topics: Advanced Fiber Laser Technologies · Laser-Matter Interactions and Applications · Photonic Crystal and Fiber Optics

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Key Laboratory for Micro‐/Nano‐Optoelectronic Devices of Ministry of Education School of Physics and Electronics Hunan University Changsha 410082 China

Shenzhen Key Laboratory of Two‐dimensional Materials and Devices/Shenzhen Engineering Laboratory of Phosphorene and Optoelectronics SZU‐NUS Collaborative Innovation Center 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

Institute of Biomedicine and Biotechnology Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences Shenzhen 518055 China

Key Laboratory of New Electric Functional Materials of Guangxi Colleges and Universities Guangxi Teachers Education University Nanning 530023 China

Funding

National Natural Science Fund of China · National Natural Science Foundation of Guangdong Province of China

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