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物理学报. 2009, 58(7): 4914-4919.
doi: 10.7498/aps.58.4914.
非平行偏振双色场驱动产生脉宽稳定的单个宽谱阿秒脉冲
- 收稿日期: 2008-09-10
- 修回日期: 2008-12-03
- 刊出日期: 2009-07-20
English Abstract
Generating isolated broadband attosecond pulses with stable pulse duration in a non-colinear polarized two-color field
- Received Date:
10 September 2008
- Accepted Date:
03 December 2008
- Published Online:
20 July 2009
Abstract: A new method to generate isolated broadband attosecond pulses with stable pulse duration is proposed. By adopting a few-cycle driving pulse combined with its second harmonic field, of which the polarization angle is π/3 to the driving pulse, the short path is well selected and a smooth supercontinuum with the bandwidth of about 50 eV is observed. For the intensity of the second harmonic field higher than 1014 W/cm2, the intensity variation of the second harmonic field can hardly affect the location and the bandwidth of the generated supercontinuum. Pure isolated attosecond pulses with the duration of about 100 as can be generated by directly filtering out a supercontinuum from 85—125 eV, which facilitates the experimental implement for the isolated attosecond pulse generation.
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Keywords:
- attosecond pulse /
- supercontinuum
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