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Spatial, temporal and spectral emission characteristics from electron oscillation driven by an intense circularly polarized few-cycle laser pulse |
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| Authors: | Youwei Tian Dongxiao Yue Enyu Feng Mei Zhao Jing Tian Qiuyuan Zhang |
| Institution: | 1. College of Science, Nanjing University of Posts and Telecommunications, Nanjing, 210023, People’s Republic of China 2. Chengxian College, Southeast University, Nanjing, 210088, People’s Republic of China 3. College of Optoelectronic Engineering, Nanjing University of Posts and Telecommunications, Nanjing, 210023, People’s Republic of China |
| Abstract: | The spatial, temporal and spectral emission characteristics of radiation generated from electron oscillations driven by an intense circularly polarized few-cycle laser pulse have been investigated theoretically and numerically using a single electron model. For a femtosecond driving laser pulse with duration of one optical cycle, the maximal radiation emitted by the electron comprises only one electromagnetic pulse having durations much shorter than the optical cycle and belonging to the attosecond range. It is discovered that the influence of the initial phase on the process of full spatial characteristics of the radiation is apparent for intense few-cycle laser pulse. The characteristics can be used to measure the initial phase of intense circularly polarized few-cycle laser pulse in experiments. |
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