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| 1 | Ultrafast fiber lasers mode-locked by two-dimensional materials:review and prospect显示文摘The year 2019 marks the 10th anniversary of the first report of ultrafast fiber laser mode-locked by graphene.This result has had an important impact on ultrafast laser optics and continues to offer new horizons.Herein,we mainly review the linear and nonlinear photonic properties of two-dimensional(2D)materials,as well as their nonlinear applications in efficient passive mode-locking devices and ultrafast fiber lasers.Initial works and significant progress in this field,as well as new insights and challenges of 2D materials for ultrafast fiber lasers,are reviewed and analyzed. | TIAN JIANG KE YIN CONG WANG JIE YOU HAO OUYANG RUNLIN MIAO CHENXI ZHANG KE WEI HAN LI HAITAO CHEN RENYAN ZHANG XIN ZHENG ZHONGJIE XU XIANGAI CHENG HAN ZHANG | 2020 | Photonics Research2020，8，1： | 11 |
| 2 | Achieving Centimeter Ranging Accuracy with Triple-frequency Signals in C-band Satellite Navigation System显示文摘 | Guo Xiangai Li Huama Guan Yima | | 0，，01： | 1 |
| 3 | Study of photovoltaic effect photovoltaie HgCdTe detector irradiated by spectral unrelated laser显示文摘 | Jiang Tian Cbeng Xiangai Li Li | 2011 | Optics and Spectroscopy2011，111，2： | 1 |
| 4 | Ultrafast Nonlinear Optical Excitation Behaviors of Mono-and Few-Layer Two Dimensional MoS2显示文摘The layered MoS2 has recently attracted significant attention for its excellent nonlinear optical properties.Here,the ultrafast nonlinear optical (NLO)absorption and excited carrier dynamics of layered MoS2(monolayer,3-4 layers,and 6-8 layers)are investigated via Z-scan and transient absorption spectra.Our experimental results reveal that NLO absorption coefficients of these MoS2 increase from-27×10^3cm/GW to -11×10^3cm/GW with more layers at 400-nm laser excitation,while the values decrease from 2.0×10^3cm/GW to 0.8×10^3cm/GW at 800nm.In addition, at high pump fluence,when the NLO response occurs,the results show that not only the reformation of the excitonic bands,but also the recovery time of NLO response decreases from 150ps to lOOps with an increasing number of layers,while the reductive energy of A excitonic band decreases from 191.TmeV to 51.1meV.The intriguing NLO response of MoS2 provides excellent potentials for the next-generation optoelectronic and photonic devices. | Yizhi WANG Zhongyuan GUO Jie YOU Zhen ZHANG Xin ZHENG Xiangai CHENG | 2019 | Photonic Sensors2019，9，1： | 1 |
| 5 | Implement Situation and Revelation of British M anagement of Geological M aterials显示文摘 | LIU Fengmin REN Xiangai XIA Haodong | 2011 | Development and Research of the M anagement of Geological M aterials2011，，4： | 1 |
| 6 | Mechanism of N-to-S acyl transfer of N-(2-hydroxybenzyl) cysteine derivatives and origin of phenol acceleration effect显示文摘N-(2-Hydroxybenzyl)cysteine derivatives were recently disclosed to be efficient crypto-thioesters for native chemical ligation(NCL). To elucidate the mechanism of the relevant N-to-S acyl transfer process as well as the origin of the acceleration effect of the phenol substitutes, a density functional theory(DFT)study was performed. It was found that the N-to-S acyl transfer of N-(2-hydroxybenzyl)cysteine derivatives involve four major steps: concerted nucleophilic addition of thiolate/proton transfer,inversion of an amine moiety, water-assisted proton transfer and CààN bond cleavage. The phenol substitutes promote the nucleophilic addition of thiolate by protonating the carbonyl oxygen atom synergistically and the proton transfer from hydroxyl to amide nitrogen atom is the rate-determining step of the N-to-S acyl transfer. By contrast, changing the phenolic hydroxyl to methoxyl was found to significantly slow down the nucleophilic addition of thiolate and thus hinders the N-to-S acyl transfer overall. These computational results are consistent with the observation of previously reported control experiments, by which our proposed mechanism is further validated. | Siwei Bi Peng Liu Baoping Ling Xiangai Yuan Yuanye Jiang | 2018 | Chinese Chemical Letters2018，29，8： | 0 |
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