A new argon‐ion laser based on an electrodeless plasma
作者:
Peiyuan Zhu,
R. W. Boswell,
期刊:
Journal of Applied Physics
(AIP Available online 1990)
卷期:
Volume 68,
issue 5
页码: 1981-1984
ISSN:0021-8979
年代: 1990
DOI:10.1063/1.346597
出版商: AIP
数据来源: AIP
摘要:
A new argon‐ion laser based on an electrodeless magnetoplasma with tube diameter of 45 mm has been developed, and optimal operation conditions were experimentally studied. The plasma is thought to be generated by helicon waves excited by an external antenna. Selected excitation of the upper lasing level of Ar iidue to Landau damping of the helicon waves plays an important role in the mechanics of the population inversion in this laser. The plasma is excited externally by radio frequencies, and the lasing active medium does not directly touch the plasma wall, minimizing the problems associated with impurities from both the electrodes and the tube wall. A peak laser output power of 0.5 W with 10−4efficiency has been reached, although the operation condition was not far from that of the lasing threshold.
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