supported by the key projects of Hunan Provincial Department of Education(Grant No.21A0167);the Hunan Provincial Natural Science Foundation of China(Grant No.2019JJ40532);the National Natural Science Foundation of China(Grant Nos.11704417,11974106,and 11247030);the Talent Introducing Foundation of Central South University of Forestry and Technology(Grant No.104-0160)。
As an earth-abundant and environmentally friendly material,tin sulfide(SnS)is not only a high-performance photovoltaic material,but also a new promising thermoelectric material.Despite extensive research on the thermo...
Supported by the Natural Science Foundation of Heilongjiang Province under Grant Nos F201312,F2016023 and QC2015086;the National Natural Science Foundation of China under Grant No 61405049
Ultrashort pulses complicate the frequency conversion in a nonlinear crystal, where group velocity mismatch becomes the main obstacle due to dispersion. We present a design for group velocity compensated second harmon...
Supported by the National Natural Science Foundation of China under Grant Nos 91436103 and 11204374
A 194-nm cw laser is an essential part in the mercury ion optical frequency standard. We report the generation of over 2mW continuous-wave radiation at 194nm in a beta barium borate crystal using a simple sum frequenc...
Group velocity mismatch becomes the main obstacle for frequency conversion of ultrashort pulses due to dispersion. To solve the problem, one design is proposed for group velocity compensated second harmonic generation...