5篇
您的检索式：作者名="Linping Yan"
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| 1 | Real-time observation of vortex mode switching in a narrow-linewidth mode-locked fiber laser显示文摘Temporal and spatial resonant modes are always possessed in physical systems with energy oscillation.In ultrafast fiber lasers,enormous progress has been made toward controlling the interactions of many longitudinal modes,which results in temporally mode-locked pulses.Recently,optical vortex beams have been extensively investigated due to their quantized orbital angular momentum,spatially donut-like intensity,and spiral phase front.In this paper,we have demonstrated the first to our knowledge observation of optical vortex mode switching and their corresponding pulse evolution dynamics in a narrow-linewidth mode-locked fiber laser.The spatial mode switching is achieved by incorporating a dual-resonant acousto-optic mode converter in the vortex mode-locked fiber laser.The vortex mode-switching dynamics have four stages,including quiet-down,relaxation oscillation,quasi mode-locking,and energy recovery prior to the stable mode-locking of another vortex mode.The evolution dynamics of the wavelength shifting during the switching process are observed via the time-stretch dispersion Fourier transform method.The spatial mode competition through optical nonlinearity induces energy fluctuation on the time scale of ultrashort pulses,which plays an essential role in the mode-switching dynamic process.The results have great implications in the study of spatial mode-locking mechanisms and ultrashort laser applications. | Jiafeng Lu Fan Shi Linghao Meng Longkun Zhang Linping Teng Zhengqian Luo Peiguang Yan Fufei Pang Xianglong Zeng | 2020 | Photonics Research2020，8，7： | 2 |
| 2 | Long-term effect of chemical fertilizer, straw, and manure on soil chemical and biological properties in northwest China显示文摘 | Enke Liu Changrong Yan Xurong Mei Wenqing He So Hwat Bing Linping Ding Qin Liu Shuang Liu Tinglu Fan | 2010 | Geoderma2010，，3： | 1 |
| 3 | Long-term effect of chemical fertilizer, straw, and manure on soil chemical and biological properties in northwest China显示文摘 | Enke Liu Changrong Yan Xurong Mei Wenqing He So Hwat Bing Linping Ding Qin Liu Shuang Liu Tinglu Fan | 2010 | Geoderma2010，，3： | 1 |
| 4 | Effect of transport vibration levels on mechanical damage and physical responses of Huanghua pears显示文摘 | Ran Zhou Shuqiang Su Linping Yan | 2007 | Postharvest Biology and Technology2007，46，： | 1 |
| 5 | Natural leather based gamma-ray shielding materials enabled by the coordination of well-dispersed Bi^(3+)/Ba^(2+)ions and RE_(2)O_(3)coating显示文摘Gamma rays is widely used in modern science and technology,but it may cause health damage to practitioners.In the present study,natural composites based on leather and high-Z elements(atomic number≥56)were fabricated and used as gamma rays shielding materials.These shielding materials were prepared by coating rare earth nanoparticles(Er_(2)O_(3)or La2O3)onto the surface of natural leather,which was first impregnated with Bi^(3+)and Ba^(2+).Results show that the attenuation efficiency of the prepared Er1.31Bi5.46-NL(1.31 and 5.46 mmol cm^(−3)loaded elements)with thickness of 3.2 mm was 61.57%for incident rays at 121.78 keV(152Eu)and reached 96.4%in the incident of 59.5 keV(241Am),which is comparable to that of 0.25-mm lead plate(54.54 mmol cm−3).In addition,these natural-leather-based shielding materials exhibited low density(approximately 1/10 of Pb),high strength and wearable behaviors. | Yue Shen Jibo Zhou Zheng Han Hao Li Linping Yan Xuepin Liao Bi Shi | 2022 | Journal of Leather Science and Engineering2022，4，1： | 0 |
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