Wakefield Resonant Excitation by Intense Laser Pulse in Capillary Plasma

ZHOU Suyun(周素云); YUAN Xiao(袁孝); LIU Mingping(刘明萍)

doi:10.1088/1009-0630/14/1/01

Plasma Science and Technology > 2012 > 14(1): 1-4. > DOI: 10.1088/1009-0630/14/1/01

ZHOU Suyun(周素云), YUAN Xiao(袁孝), LIU Mingping(刘明萍). Wakefield Resonant Excitation by Intense Laser Pulse in Capillary Plasma[J]. Plasma Science and Technology, 2012, 14(1): 1-4. DOI: 10.1088/1009-0630/14/1/01

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Wakefield Resonant Excitation by Intense Laser Pulse in Capillary Plasma

1 Institute of Communications and electronics, Jiangxi Science and Technology Normal University, Nanchang 330013, China 2 College of Information Engineering, Nanchang University, Nanchang 330031, China

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Received Date: September 12, 2011

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Abstract

Abstract

The laser-induced plasma wakefield in a capillary is investigated on the basis of a simple two-dimensional analytical model. It is shown that as an intense laser pulse reshaped by the capillary wall propagates in capillary plasma, it resonantly excites a strong wakefield if a suitable laser pulse width and capillary radius are chosen for a certain plasma density. The dependence of the laser width and capillary radius on the plasma density for resonance conditions is considered. The wakefield amplitude and longitudinal scale of bubbles in capillary plasma are much larger than those in unbounded plasma, so the capillary guided plasma wakefield is more favorable to electron acceleration.
- capillary plasma,
- wakefield plasma resonance

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