Wavelength-dependence of double optical gating for attosecond pulse generation  

作　　者：田佳 黎敏 于济洲 邓勇开 刘运全 

机构地区：[1]Department of Physics and State Key Laboratory for Mesoscopic Physics, Peking University [2]Collaborative Innovation Center of Quantum Matter

出　　处：《Chinese Physics B》2014年第10期175-179,共5页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.11125416,and 11121091);the National Basic Research Program of China(Grant No.2013CB922403)

摘　　要：Both polarization gating （PG） and double optical gating （DOG） are productive methods to generate single attosecond （as） pulses. In this paper, considering the ground-state depletion effect, we investigate the wavelength-dependence of the DOG method in order to optimize the generation of single attosecond pulses for the future application. By calculating the ionization probabilities of the leading edge of the pulse at different driving laser wavelengths, we obtain the upper limit of duration for the driving laser pulse for the DOG setup. We find that the upper limit duration increases with the increase of laser wavelength. We further describe the technical method of choosing and calculating the thickness values of optical components for the DOG setup.Both polarization gating （PG） and double optical gating （DOG） are productive methods to generate single attosecond （as） pulses. In this paper, considering the ground-state depletion effect, we investigate the wavelength-dependence of the DOG method in order to optimize the generation of single attosecond pulses for the future application. By calculating the ionization probabilities of the leading edge of the pulse at different driving laser wavelengths, we obtain the upper limit of duration for the driving laser pulse for the DOG setup. We find that the upper limit duration increases with the increase of laser wavelength. We further describe the technical method of choosing and calculating the thickness values of optical components for the DOG setup.

关 键 词：double optical gating isolated attosecond pulse ionization probability 

分 类 号：O437[机械工程—光学工程]