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用激光干涉法诊断准分子激光在YBa2Cu3O7-δ靶面激励等离子体的电子密度
Determination of electron density of laser-produced Y-Ba-Cu-O plasma with laser interferometry
【摘要】 利用激光标准干涉法诊断了准分子激光(XeCl,308 nm)在YBa2Cu3O7-σ超导靶面激励等离子体的电子密度.结果表明在入射激光功率密度为3×108W/cm2,本底真空度为1.33~13.3 Pa的条件下,等离子体电子密度为1016~1017/cm3.
【Abstract】 The electron density of excimer (XeCl, 308 nm) laser-produced plasma near the surface of Y-Ba-Cu-O target has been diagnosed with laser interferometry. The results show that the electron density is about 1016-1017/cm3 when the laser power density is 3 × 108 W/cm2and the background pressure is 1. 33-13. 3 Pa.
【关键词】 准分子激光;
高温超导;
等离子体;
电子密度;
激光干涉;
【Key words】 excimer laser; high temperature superconducting; plasma; electron density; laser interferometry;
【Key words】 excimer laser; high temperature superconducting; plasma; electron density; laser interferometry;
【基金】 国家教委基金
- 【文献出处】 光学学报 ,Acta Optica Sinica , 编辑部邮箱 ,1993年10期
- 【被引频次】1
- 【下载频次】36