| Autor: |
Zhi-Jian Guo, Xiao-Xin Zhou, Zhang-Jin Chen |
| Rok vydání: |
2014 |
| Předmět: |
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| Zdroj: |
Chinese Physics B. 23:043201 |
| ISSN: |
1674-1056 |
| DOI: |
10.1088/1674-1056/23/4/043201 |
| Popis: |
We use the strong field approximation with a time window function controlling the release time of electrons to study the intra-cycle and inter-cycle interferences in few-cycle intense laser pulses impinging on He. The diffraction fringes, i.e., the vertical stripe-like structure, observed in the experimental two-dimensional photoelectron momentum distributions of Gopal et al. (2009 Phys. Rev. Lett. 103 053001) have been attributed to the interplay of the intra- and inter-cycle interferences. The pure numerical calculations by solving the time-dependent Schrodinger equation are also performed and the results are compared with the experimental measurements directly. It has been found that the position of the stripe-like structure can be used to determine the duration of the laser pulses used in experiments. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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