TY - JOUR
T1 - Tunable high-order harmonic generation and the role of the folded quantum path
AU - Zeng, Zhinan
AU - Cheng, Ya
AU - Fu, Yuxi
AU - Song, Xiaohong
AU - Li, Ruxin
AU - Xu, Zhizhan
PY - 2008/2/22
Y1 - 2008/2/22
N2 - We theoretically demonstrate the selective enhancement of high-order harmonic generation (HHG) in two-color laser fields consisting of a single-cycle fundamental wave (800 nm wavelength) and a multicycle subharmonic wave (2400 nm wavelength). By performing time-frequency analyses based on a single-active-electron model, we reveal that such an enhancement is a result of the modified electron trajectories in the two-color field. Furthermore, we show that selectively enhanced HHG gives rise to a bandwidth-controllable extreme ultraviolet supercontinuum in the plateau region, facilitating the generation of intense single isolated attosecond pulses.
AB - We theoretically demonstrate the selective enhancement of high-order harmonic generation (HHG) in two-color laser fields consisting of a single-cycle fundamental wave (800 nm wavelength) and a multicycle subharmonic wave (2400 nm wavelength). By performing time-frequency analyses based on a single-active-electron model, we reveal that such an enhancement is a result of the modified electron trajectories in the two-color field. Furthermore, we show that selectively enhanced HHG gives rise to a bandwidth-controllable extreme ultraviolet supercontinuum in the plateau region, facilitating the generation of intense single isolated attosecond pulses.
UR - https://www.scopus.com/pages/publications/40849094655
U2 - 10.1103/PhysRevA.77.023416
DO - 10.1103/PhysRevA.77.023416
M3 - 文章
AN - SCOPUS:40849094655
SN - 1050-2947
VL - 77
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 2
M1 - 023416
ER -