Spectral investigations of photoionized plasmas induced in atomic and molecular gases using nanosecond extreme ultraviolet (EUV) pulses
Spectral investigations of photoionized plasmas induced in atomic and molecular gases using nanosecond extreme ultraviolet (EUV) pulses
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DOI：
10.1063/1.4891433
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发表时间：
2014-07-01
影响因子：
2.2
通讯作者：
Wachulak, P.
中科院分区：
文献类型：
--
作者：
Bartnik, A.;Fiedorowicz, H.;Wachulak, P.
在本文中，低温光致电离等离子体的光谱研究的结果，产生的气体与强脉冲的极紫外（EUV）辐射的激光产生的等离子体（LPP）源，照射。LPP源是基于4 ns/0.8J/10 Hz Nd：YAG激光脉冲照射的双流Kr 2 O3/He喷气靶。来自源的最强发射跨越接近10-12 nm的相对窄的光谱区域λ;然而，在较长波长处的光谱积分强度也是显著的。EUV光束聚焦在气流上，与EUV脉冲同步注入真空室。气体的辐照导致形成在EUV范围内发射辐射的光电离等离子体。辐射光谱，测量在各种气体中产生的等离子体，占主导地位的发射线，来自单电荷离子。显着差异的光谱强度和分布之间产生的等离子体氖和分子气体进行了观察。(C)2014 AIP Publishing LLC.
In this paper, results of spectral investigations of low temperature photoionized plasmas, created by irradiation of gases with intense pulses of extreme ultraviolet (EUV) radiation from a laser-produced plasma (LPP) source, are presented. The LPP source was based on a double-stream KrXe/He gas-puff target irradiated with 4 ns/0.8 J/10 Hz Nd:YAG laser pulses. The most intense emission from the source spanned a relatively narrow spectral region lambda approximate to 10-12 nm; however, spectrally integrated intensity at longer wavelengths was also significant. The EUV beam was focused on a gas stream, injected into a vacuum chamber synchronously with the EUV pulses. Irradiation of gases resulted in formation of photoionized plasmas emitting radiation in the EUV range. Radiation spectra, measured for plasmas produced in various gases, are dominated by emission lines, originating from single charged ions. Significant differences in spectral intensities and distributions between plasmas created in neon and molecular gases were observed. (C) 2014 AIP Publishing LLC.