Generation of coherent attosecond pulses from a nano-tube array illuminated by a high-power femtosecond laser
SCIE
SCOPUS
- Title
- Generation of coherent attosecond pulses from a nano-tube array illuminated by a high-power femtosecond laser
- Authors
- Chung, SY; Hwang, SW; Lee, K; Kim, D; Lee, HJ
- Date Issued
- 2013-12-10
- Publisher
- IOPscience
- Abstract
- A method to generate an isolated single-cycle attosecond pulse from the interaction of a high-power femtosecond laser pulse with a nano-tube array is demonstrated using a two-dimensional relativistic particle-in-cell simulation. The radiation mechanism is relativistic nonlinear Thomson scattering from the electrons in a target material. Coherent radiation is emitted in the direction of specular reflection for the incident laser pulse while the electrons make a bunch size smaller than a wavelength of the laser pulse. Maintaining the coherence of the radiation from the electrons is essential to get an intense attosecond duration, which is achieved by using a nano-tube array target and a sharply increasing laser pulse. Optimal conditions for attosecond pulse generation are investigated by parameter scanning over plasma density, target thickness and laser pulse duration.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/11813
- DOI
- 10.1088/1367-2630/15/12/123017
- ISSN
- 1367-2630
- Article Type
- Article
- Citation
- New Journal of Physics, vol. 15, 2013-12-10
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