Temporal and spatial behavior of electron density and temperature in a laser-produced plasma from YBa2Cu3O7

被引：87

作者：

Harilal, SS

Bindhu, CV

Nampoori, VPN

Vallabhan, CPG ^{[1
]}

机构：

[1] Cochin Univ Sci & Technol, Int Sch Photon, Laser Div, Cochin 682022, Kerala, India

[2] Sree Narayana Coll, Dept Phys, Punalur 691305, India

来源：

APPLIED SPECTROSCOPY | 1998年 / 52卷 / 03期

关键词：

laser-plasma spectroscopy; plasma diagnostics; emission spectroscopy; YBa2Cu3O7;

D O I：

10.1366/0003702981943671

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Spectroscopic studies of laser-induced plasma from a high-temperature superconducting material, viz., YBa2Cu3O7 (YBCO), have been carried out. Electron temperature and electron density measurements were made from spectral data. The Stark broadening of emission lines was used to determine the electron density, and the ratio of line intensities was exploited for the determination of electron temperature. An initial electron temperature of 2.35 eV and electron density of 2.5 x 10(17) cm(-3) were observed. The dependence on electron temperature and density on different experimental parameters such as distance from the target, delay time after the initiation of the plasma, and laser irradiance is also discussed in detail.

引用

页码：449 / 455

页数：7

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