Our measured Cu II Stark FWHM (<em>W_m</em>) obtained at 19 300 K electron temperature and at 2.1 <b>×</b>

<b>Table 1.</b> Our measured Cu II Stark FWHM (<em>W_m</em>) obtained at 19 300 K electron temperature and at 2.1 <b>×</b> 10²³ m⁻³ electron density. Transitions and wavelengths (λ) were taken from [23] and [24]. The accuracy estimates are: 15% ≤ A ≤20% ≤ B ≤25% ≤ C ≤30%. <strong>Abstract</strong> In this work we present the Stark widths (<em>W</em>) of 22 neutral (Cu I) and 100 singly ionized (Cu II) copper spectral lines that have been measured at 18 400 K and 19 300 K electron temperatures and 6.3 <b>×</b> 10²² m⁻³ and 2.1 <b>×</b> 10²³ m⁻³ electron densities, respectively. The experiment is conducted in the laser-induced plasma—the Nd:YAG laser, operating at 532 nm, was used to produce plasma from the copper sample in the residual air atmosphere at a pressure of 8 Pa. The electron temperature and density were estimated by the Boltzmann-plot method and from the Saha equation. The investigated Cu I lines belong to the 4s–4p', 4s²–4p'' and 4p'–4d' transitions while Cu II spectral lines belong to the 4s–4p, 4p–5s, 4p–4d, 4p–4s², 4d–4f and 4d–v transitions. Comparison with existing experimental data was possible only in the case of 17 Cu II lines due to a lack of experimental and theoretical values. The rest of the data, Stark widths of 22 Cu I and 83 Cu II lines are published for the first time.<b>表1.</b> 本研究测得的铜(II)离子（Cu II）斯塔克半高全宽（Stark FWHM），记为<em>Wₘ</em>，测试条件为电子温度19300 K、电子密度2.1×10²³ m⁻³。谱线跃迁与波长(λ)取自文献[23]与[24]。精度评定结果为：15% ≤ A ≤20% ≤ B ≤25% ≤ C ≤30%。 <strong>摘要</strong> 本工作报道了22条中性铜（Cu I）谱线与100条单电离铜（Cu II）谱线的斯塔克宽度（Stark width，W），分别在电子温度18400 K、19300 K，电子密度6.3×10²² m⁻³与2.1×10²³ m⁻³的条件下测得。本实验基于激光诱导等离子体开展：采用工作波长为532 nm的掺钕钇铝石榴石（Nd:YAG）激光器，在8 Pa的残余空气环境中辐照铜样品以产生等离子体。电子温度与电子密度分别通过玻尔兹曼作图法（Boltzmann-plot method）与萨哈方程（Saha equation）估算得到。本次研究的Cu I谱线归属为4s–4p'、4s²–4p''以及4p'–4d'跃迁，而Cu II谱线则归属为4s–4p、4p–5s、4p–4d、4p–4s²、4d–4f及4d–v跃迁。由于缺乏相关实验与理论数据，仅可针对17条Cu II谱线与已有实验数据进行比对。剩余22条Cu I谱线与83条Cu II谱线的斯塔克宽度数据均为首次公开发表。