{"title":"Temporal Characterization of a Plasma Produced by Interaction of Laser Pulses with Water Solutions","authors":"J. Ahmed, N. Terzi, Z. B. Lakhdar, G. Taieb","doi":"10.1080/02786270215155","DOIUrl":null,"url":null,"abstract":"The temporal evolution of a plasma formed by the interaction of a Nd-YAG 10 ns laser pulse with the surface of aqueous solutions of CaCl 2 , has been observed by analyzing the variation of the emission spectra of ions and neutral atoms in the time interval after the laser pulse, 500 ns T e using a Saha-Boltzmann analysis. The broadening of the resonance line of CaI at 4227 A was used to deduce the electronic density N e , with the aid of the semiclassical theory of Stark broadening. A value of T e ≈ 28000 K decreasing slightly to 21000 K, and an exponential decay for N e were found, with N e ≈ 1:25 × 10 18 cm -3 at 500 ns and τ e = ( 1200 ± 50 ) ns.","PeriodicalId":296295,"journal":{"name":"Laser Chemistry","volume":"73 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"19","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Laser Chemistry","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1080/02786270215155","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 19
Abstract
The temporal evolution of a plasma formed by the interaction of a Nd-YAG 10 ns laser pulse with the surface of aqueous solutions of CaCl 2 , has been observed by analyzing the variation of the emission spectra of ions and neutral atoms in the time interval after the laser pulse, 500 ns T e using a Saha-Boltzmann analysis. The broadening of the resonance line of CaI at 4227 A was used to deduce the electronic density N e , with the aid of the semiclassical theory of Stark broadening. A value of T e ≈ 28000 K decreasing slightly to 21000 K, and an exponential decay for N e were found, with N e ≈ 1:25 × 10 18 cm -3 at 500 ns and τ e = ( 1200 ± 50 ) ns.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
