Absorption coefficients of oxygen in the vacuum ultraviolet.
Absorption coefficients of oxygen in the vacuum ultraviolet.
复制标题
氧在真空紫外线中的吸收系数。
DOI：
10.1364/josa.42.000200
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发表时间：
1952
影响因子：
--
通讯作者：
Po Lee
中科院分区：
文献类型：
--
作者：
G. L. Weissler;Po Lee
用掠入射真空光谱仪和线发射光源测量了300 ~ 1300 A范围内氧的吸收系数。1300 A附近的系数小于k=10 cm−1。在1300 A和1000 A之间的区域中的谱带显示出与氮的Worley谱带相同数量级的强吸收。在1300 ~ 740 A之间没有发现强的连续吸收。氧在740 A以下的连续吸收被解释为由多个里德堡系列的电离连续谱会聚到氧分子离子的激发态。连续谱在400 A到600 A之间有一个宽的最大值，k值约为700 cm−1，与氮相反，在303 A处仍然显示出k=530 cm−1的大吸收。的综合吸收系数的估计和相应的f值被发现是6，与经典色散理论的预测。
Absorption coefficients of oxygen were measured between 300A and 1300A using a grazing incidence vacuum spectrograph together with a line emission light source. The coefficients near 1300A were less than k=10 cm−1. The bands in the region between 1300A and 1000A showed strong absorption of the same order of magnitude as in the Worley bands of nitrogen. No strong continuous absorption was found in the region between 1300A and 740A. The continuous absorption of oxygen below 740A was interpreted as composed of the ionization continua of several Rydberg series converging to the excited states of the molecular ion of oxygen. The continuum had a broad maximum with k-values of about 700 cm−1 between 400A and 600A and, in contrast to nitrogen, still showed a large absorption of k=530 cm−1 at 303A. An estimate of the integrated absorption coefficient was made and the corresponding f-value was found to be 6, in agreement with the predictions from classical dispersion theory.