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12 October 2020, Volume 39 Issue 3    Next Issue

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Multi-color random lasers based on energy transfer Shi Xiao-Yu, Wang Zhao-Na, Zhai Tian-Rui, Zhang Xin-Ping 2019, 39 (3):  81-94.  PDF (4218KB) ( 376 )   Multi-color random lasers have shown potential applications for sensing, imaging and photonic chips due to the low cost, small size, easy integration, and high performance. It is one of the most important fields of random lasers. Two challenges still remain in developing the laser devices. One is the realization of the efficient single-excitation pumping. The other is the broadening of the range of laser wavelength. The energy transfer between different gain media is a promising candidate for solving the problems. This paper reviews the design, fabrication, and spectroscopy characteristics of multi-color random lasers based on the radiation/resonance energy transfer. The relationship between the donor/acceptor ratio and the pump is revealed. At last, the development tendency of multi-color random lasers is provided. Related Articles | Metrics

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Exploring dynamics of protein and its surface water molecules by combining neutron scattering, deuteration technique, and computer simulations Ye Yi-Yang, Hong Liang 2019, 39 (3):  95-106.  PDF (3281KB) ( 285 )   As the life engine, protein conducts most of the biofunctions in living matters. These functions require unique protein structures to fluctuate over time and space. Hence, exploring the internal dynamics of the protein molecules as well as its connection to the protein function is a central topic in biophysics. In this report, we summarized recent progress achieved in our group, which combines neutron scattering experiment, deuteration technique, and molecular dynamics simulation to study dynamics of the protein and its surface water molecules. Related Articles | Metrics