supported by the National Natural Science Foundation of China (NSFC) (Nos. 11127901, 11134010, 61221064, and 61405222);the Strategic Priority Research Program of Chinese Academy of Sciences (CAS) (No. XDB16000000)。
We present a velocity-gauge model for the generation of even-order high harmonics, and reveal that the even-order harmonics originate from the multiple-step transitions among the energy bands in momentum space, while ...
Project supported by the National Natural Science Foundation of China(Grant Nos.61221064,61078037,11134010,61205208,and 61521093);the Strategic Priority Research Program of the Chinese Academy of Sciences(Grant No.XDB16);the International S&T Cooperation Program of China(Grant No.2016YFE0119300)
We theoretically study the field-free molecular orientation induced by a three-color laser field. The three-color laser field with a large asymmetric degree can effectively enhance the molecular orientation. In partic...
supported by the National Natural Science Foundation of China(Grant Nos.11127901,61521093,11134010,11227902,11222439,and 11274325);the National Basic Research Program of China(Grant No.2011CB808103)
Electron localization in the dissociation of the symmetric linear molecular ion H3-(2+) is investigated. The numerical simulation shows that the electron localization distribution is dependent on the central freque...
supported by the National Natural Science Foundation of China(Grant Nos.11127901,61521093,11134010,11227902,11222439,and 11274325);the National Basic Research Program of China(Grant No.2011CB808103)
A dc electric field is utilized to steer the electron motion after the molecular ion H2-+ is excited by an ultrashort ultraviolet laser pulse. The numerical simulation shows that the electron localization distributio...
Project supported by the National Natural Science Foundation of China(Grant Nos.11204328,61221064,61078037,11127901,11134010,and 61205208);the National Basic Research Program of China(Grant No.2011CB808101);the Natural Science Foundation of Shanghai,China(Grant No.13ZR1414800)
We numerically study the pulse compression approaches based on atomic or molecular gases in a hollow-core fiber.From the perspective of self-phase modulation(SPM), we give the extensive study of the SPM influence on...
supported by the National Basic Research Program of China(Grant No.2011CB808101);the National Natural Science Foundation of China(NSFC)(Grant Nos.61078037,11127901,11134010,and 11204328);the NSFC (No. 61178007);the External Cooperation Program of Bureau of International Cooperation, Chinese Academy of Sciences (No. 181231KYSB20130007);the National 10000-Talent Program;CAS 100-Talent Program for financial support
A passively Q-swithched mode-locked (QML) Tm:LiLuF4 (LLF) laser with a MoS2 saturable absorber (SA) is demonstrated for the first time, to our best knowledge. For the Q-switching mode, the maximum average outp...
Project supported by the National Natural Science Foundation of China(Grant Nos.11127901,60921004,11134010,11222439,11227902,and 61108012);the National Basic Research Program of China(Grant No.2011CB808103)
The molecular dissociation with a two-laser-pulse scheme is theoretically investigated for the hydrogen molecular ion(H2^+) and its isotopes(HD^+and HT^+). The terahertz pulse is used to steer the electron moti...
Project supported by the National Natural Science Foundation of China(Grant Nos.11204328,61221064,61078037,11127901,and 11134010);the National Basic Research Program of China(Grant No.2011CB808101);the Commission of Science and Technology of Shanghai,China(Grant No.12dz1100700);the Natural Science Foundation of Shanghai,China(Grant No.13ZR1414800);the International Science and Technology Cooperation Program of China(Grant No.2011DFA11300)
We theoretically study the nonlinear compression of picosecond pulses with 10-m J of input energy at the 1053-nm center wavelength by using a one-meter-long gas-filled hollow-core fiber(HCF) compressor and consideri...
Project supported by the National Natural Science Foundation of China(Grant Nos.61221064,61078037,11127901,and 11134010);the National Basic Research Program of China(Grant No.2011CB808101);the Funds from the Commission of Science and Technology of Shanghai,China(Grant No.12dz1100700);the Natural Science Foundation of Shanghai,China(Grant No.13ZR1414800);the International S&T Cooperation Program of China(Grant No.2011DFA11300)
We study theoretically the spectral intensity evolutions of the femtosecond Gaussian and parabolic pulses with different initial pulse energies and compare the nonlinear compressions of these pulses based on a meter-l...
Project supported by the National Natural Science Foundation of China(Grant Nos.11127901,61221064,11134010,11227902,11222439,and 11274325);the National Basic Research Program of China(Grant No.2011CB808103);the Funds from Shanghai Commission of Science and Technology(Grant No.12QA1403700)
The influence of the carrier-envelope phase on high-harmonic generation is investigated, both experimentally and theoretically, for three different interaction gas media, driven by mid-infrared, few-cycle and CEP-stab...