Tunable coherent radiations in the range of 83-170nm have been generated in Xe,Kr and Ar by resonant and nonresonant four-wave sum-mixing,four-wave sum-differenoe-mixing and third harmonic processes.The physical mecha...Tunable coherent radiations in the range of 83-170nm have been generated in Xe,Kr and Ar by resonant and nonresonant four-wave sum-mixing,four-wave sum-differenoe-mixing and third harmonic processes.The physical mechanism for the generation of the coherent XUV/VUV radiations is investigated.Broadly tunable coherent radiation was generated by nonresonant four-wave sum-mixing for the first time below the first resonance level of nonlinear media,and multicoherence length interference between the driving polarization and induced radiation was observed.展开更多
Broadly tunable coherent VUV/XUV radiations from 92 to 145 nm were generated by nonresonant four-wave sum-mixing (FWSM) and third-harmonic generation (THG) in pulsed jet of Xe or Kr. The dependence of phase-matching o...Broadly tunable coherent VUV/XUV radiations from 92 to 145 nm were generated by nonresonant four-wave sum-mixing (FWSM) and third-harmonic generation (THG) in pulsed jet of Xe or Kr. The dependence of phase-matching on gas density, atomic dispersion was observed. THG enhanced by third-photon resonant with the high Rydberg states in Xe was observed, and the resolved principal quantum number was up to 34.展开更多
基金Project supported by the National Natural Science Foundation of ChinaHigh-Tech Program of China in Laser Area
文摘Tunable coherent radiations in the range of 83-170nm have been generated in Xe,Kr and Ar by resonant and nonresonant four-wave sum-mixing,four-wave sum-differenoe-mixing and third harmonic processes.The physical mechanism for the generation of the coherent XUV/VUV radiations is investigated.Broadly tunable coherent radiation was generated by nonresonant four-wave sum-mixing for the first time below the first resonance level of nonlinear media,and multicoherence length interference between the driving polarization and induced radiation was observed.
基金National Natural Science Foundation of ChinaHigh Technoque Program of Lasers.
文摘Broadly tunable coherent VUV/XUV radiations from 92 to 145 nm were generated by nonresonant four-wave sum-mixing (FWSM) and third-harmonic generation (THG) in pulsed jet of Xe or Kr. The dependence of phase-matching on gas density, atomic dispersion was observed. THG enhanced by third-photon resonant with the high Rydberg states in Xe was observed, and the resolved principal quantum number was up to 34.
