S
Saifeng Zhang
Researcher at Chinese Academy of Sciences
Publications - 60
Citations - 3452
Saifeng Zhang is an academic researcher from Chinese Academy of Sciences. The author has contributed to research in topics: Saturable absorption & Absorption (electromagnetic radiation). The author has an hindex of 27, co-authored 56 publications receiving 2738 citations. Previous affiliations of Saifeng Zhang include Center for Excellence in Education & Fudan University.
Papers
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Journal ArticleDOI
Liquid exfoliation of solvent-stabilized few-layer black phosphorus for applications beyond electronics
Damien Hanlon,Claudia Backes,Evie Doherty,Clotilde S. Cucinotta,Nina C. Berner,Conor S. Boland,Kangho Lee,Andrew Harvey,Peter Lynch,Zahra Gholamvand,Saifeng Zhang,Kangpeng Wang,Kangpeng Wang,Glenn Moynihan,Anuj Pokle,Quentin M. Ramasse,Niall McEvoy,Werner J. Blau,Jun Wang,Gonzalo Abellán,Frank Hauke,Andreas Hirsch,Stefano Sanvito,David D. O'Regan,Georg S. Duesberg,Valeria Nicolosi,Jonathan N. Coleman +26 more
TL;DR: It is demonstrated that high-quality, few-layer BP nanosheets, with controllable size and observable photoluminescence, can be produced in large quantities by liquid phase exfoliation under ambient conditions in solvents such as N-cyclohexyl-2-pyrrolidone (CHP).
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Direct Observation of Degenerate Two-Photon Absorption and Its Saturation in WS2 and MoS2 Monolayer and Few-Layer Films.
Saifeng Zhang,Ningning Dong,Niall McEvoy,Maria O'Brien,Sinéad Winters,Nina C. Berner,Chanyoung Yim,Yuanxin Li,Xiaoyan Zhang,Zhanghai Chen,Long Zhang,Georg S. Duesberg,Jun Wang +12 more
TL;DR: The giant nonlinearity of WS2 and MoS2 films is attributed to a two-dimensional confinement, a giant exciton effect, and the band edge resonance of TPA.
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Optical Limiting and Theoretical Modelling of Layered Transition Metal Dichalcogenide Nanosheets
Ningning Dong,Yuanxin Li,Yanyan Feng,Saifeng Zhang,Xiaoyan Zhang,Chunxia Chang,Jintai Fan,Long Zhang,Jun Wang +8 more
TL;DR: In this paper, a liquid dispersion system based theoretical modeling is proposed to estimate the number density of the nanosheet dispersions, the relationship between incident laser fluence and the size of the laser generated micro-bubbles, and hence the Mie scattering-induced broadband optical limiting behavior in the TMDC dispersions.
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High-performance mode-locked and Q-switched fiber lasers based on novel 2D materials of topological insulators, transition metal dichalcogenides and black phosphorus: review and perspective (invited)
Kan Wu,Bohua Chen,Xiaoyan Zhang,Saifeng Zhang,Chaoshi Guo,Chao Li,Pushan Xiao,Jun Wang,Linjie Zhou,Weiwen Zou,Jianping Chen +10 more
TL;DR: In this paper, the authors summarize the current specifications from these 2D materials based mode-locked and Q-switched lasers, including operating wavelength, optical bandwidth, repetition rate and pulse energy.
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Tunable nonlinear refractive index of two-dimensional MoS 2 , WS 2 , and MoSe 2 nanosheet dispersions [Invited]
Gaozhong Wang,Saifeng Zhang,Xiaoyan Zhang,Long Zhang,Ya Cheng,Daniel Fox,Hongzhou Zhang,Jonathan N. Coleman,Werner J. Blau,Jun Wang +9 more
TL;DR: In this article, the nonlinear optical response of two-dimensional transition metal dichalcogenides in dispersions was investigated by observing spatial self-phase modulation (SSPM) using a 488nm continuous wave laser beam.