Theoretical calculations of N2-broadened halfwidths of H2O using quantum Fourier transform theory.
Theoretical calculations of N2-broadened halfwidths of H2O using quantum Fourier transform theory.
复制标题
使用量子傅里叶变换理论对 N2 展宽的 H2O 半宽度进行理论计算。
DOI：
10.1364/ao.22.004013
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发表时间：
1983
期刊：
影响因子：
1.9
通讯作者：
R. Davies
中科院分区：
文献类型：
--
作者：
R. Gamache;R. Davies
用量子傅里叶变换（QFT）理论计算了H_2O分子1600个跃迁的纯转动带N_2展宽半宽。QFT方法对应于二进制碰撞近似下的碰撞增宽的量子力学二阶微扰发展。自增宽半宽度以及压力变化也计算在这项研究中，但没有在这里提出。N2加宽的半宽度被用来形成AFGL主要气体图集上的H2O半宽度数据库，并取代了Benedict和Kaplan早期的安德森计算。
N2-broadened halfwidths for the pure rotation band of H2O have been calculated for some 1600 transitions using quantum Fourier transform (QFT) theory. The QFT method corresponds to a quantum mechanical second-order perturbation development of collisional broadening within the binary collision approximation. Self-broadened halfwidths as well as pressure shifts were also calculated in this study but are not presented here. The N2-broadened halfwidths were used to form the data base of H2O halfwidths present on the AFGL main gas Atlas and replace the earlier Anderson calculations by Benedict and Kaplan.