Analysis of phase dependence of the two single-attosecond-pulse generation techniques
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1.
State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China;
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2.
School of Science, Air Force Engineering University, Xi'an 710051, China
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Received Date:
2011-09-29
Accepted Date:
2011-10-18
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Abstract
For the sake of understanding the carrier-envelope-phase dependence of the two single-attosecond-pulse generation techniques,i.e.,amplitude gating and polarization gating,the influence of carrier-envelope phase of the driving field on the generation of extreme ultraviolet single attosecond pulse with either of the basic techniques was analyzed based on its principle and the three-step scenario of high-harmonic generation.It indicates that the optimal carrier-envelope phases for amplitude gating and polarization gating are 0 and 0.5π respectively,whose difference was induced by the close dependence of high-harmonic generation on the polarization feature of driving field.The results are of great significance to the generation and its related applications of extreme ultraviolet attosecond pulses with narrow pulse duration.
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