Effects of Confined Laser Ablation on Laser Plasma Propulsion

Chin. Phys. Lett.

2005, Vol. 22

Issue (7): 1725-1728 DOI:

Original Articles

Effects of Confined Laser Ablation on Laser Plasma Propulsion

ZHENG Zhi-Yuan;ZHANG Jie;LU Xin;HAO Zuo-Qiang;Xu Miao-Hua;WANG Zhao-Hua;WEI Zhi-Yi

Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080

Cite this article:

ZHENG Zhi-Yuan, ZHANG Jie, LU Xin et al 2005 Chin. Phys. Lett. 22 1725-1728

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Abstract We investigate the effects of confined laser ablation on laser plasma propulsion. Compared with planar ablation, the cavity ablation provides an effective way to obtain a large target momentum and a high coupling coefficient. When laser pulses are focused into a cavity with 1mm diameter and 2mm depth, a high coupling coefficient is obtained. By using a glass layer to cover the cavity, the coupling coefficient is enhanced by 10 times. Meanwhile, it is found that with the increase of the target surface size, the target momentum presents a linear increase.

Keywords: 52.75.Di 52.38.Mf 79.20.Ds

Published: 01 July 2005

PACS:	52.75.Di	(Ion and plasma propulsion)
	52.38.Mf	(Laser ablation)
	79.20.Ds	(Laser-beam impact phenomena)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2005/V22/I7/01725

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	ZHENG Zhi-Yuan
	ZHANG Jie
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	HAO Zuo-Qiang
	Xu Miao-Hua
	WANG Zhao-Hua
	WEI Zhi-Yi

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