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Chin. Opt. Lett.
 Home  List of Issues    Issue 06 , Vol. 16 , 2018    10.3788/COL201816.063201


Carrier-envelope-phase effect in nonsequential double ionization of Ar atoms by few-cycle laser pulses
Fengzhen Feng, Lihua Bai
College of Science, [Shanghai University], Shanghai 200444, China

Chin. Opt. Lett., 2018, 16(06): pp.063201

DOI:10.3788/COL201816.063201
Topic:Ultrafast optics
Keywords(OCIS Code): 320.7120  190.7110  270.6620  

Abstract
A classical ensemble method is used to investigate nonsequential double ionization (NSDI) of Ar atoms irradiated by linearly polarized few-cycle laser pulses. The correlated-electron momentum distribution (CMD) exhibits a strong dependence on the carrier-envelope phase (CEP). When the pulse duration is four cycles, the CMD shows a cross-like structure, which is consistent with experimental results. The CEP dependence is more notable when the laser pulse duration is decreased to two cycles and a special L-shaped structure appears in CMD. Recollision time of returning electrons greatly depends on CEP, which plays a significant role in accounting for the appearance of this structure.

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Received:2018/1/25
Accepted:2018/4/16
Posted online:2018/5/28

Get Citation: Fengzhen Feng, Lihua Bai, "Carrier-envelope-phase effect in nonsequential double ionization of Ar atoms by few-cycle laser pulses," Chin. Opt. Lett. 16(06), 063201(2018)

Note: This work was supported by the National Natural Science Foundation of China (No. 61275103) and the Natural Science Foundation of Shanghai (No. 18ZR1413600).



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