Evaluation of the Laser Excitation Efficiency of B2Σ+ – X2Π Transition of Phosphorus Oxide

IF 0.9 Q4 OPTICS
S. M. Bobrovnikov, E. V. Gorlov, V. I. Zharkov, S. N. Murashko
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引用次数: 0

Abstract

The article presents the results of calculation of vibrational and rotational terms of X2Π and B2Σ+ electronic states of phosphorus oxide (PO) molecule. The absorption spectrum corresponding to electronic transition B2Σ+ (\({v}{\kern 1pt} '\) = 0) – X2Π (\({v}{\kern 1pt} ''\) = 0) is calculated. The efficiency of laser excitation of PO molecules is estimated depending on the spectral parameters of radiation. It is established that the efficiency of excitation of the electronic transition B2Σ+ (\({v}{\kern 1pt} '\) = 0) – X2Π (\({v}{\kern 1pt} ''\) = 0) of PO molecule is approximately an order of magnitude lower than that of A2Σ+ (\({v}{\kern 1pt} '\) = 0) – X2Π (\({v}{\kern 1pt} ''\) = 0) transition. The results are of practical importance from the point of view of choosing the optimal scheme for laser excitation of fluorescence of PO fragments in remote detection of organophosphates.

Abstract Image

氧化磷B2Σ+ - X2Π跃迁的激光激发效率评价
本文给出了氧化磷(PO)分子的X2Π和B2Σ+电子态的振动项和转动项的计算结果。计算了电子跃迁B2Σ+ (\({v}{\kern 1pt} '\) = 0) - X2Π (\({v}{\kern 1pt} ''\) = 0)对应的吸收谱。根据辐射的光谱参数,估计了激光激发PO分子的效率。结果表明,PO分子的电子跃迁B2Σ+ (\({v}{\kern 1pt} '\) = 0) - X2Π (\({v}{\kern 1pt} ''\) = 0)的激发效率比A2Σ+ (\({v}{\kern 1pt} '\) = 0) - X2Π (\({v}{\kern 1pt} ''\) = 0)的激发效率约低一个数量级。这些结果对于选择激光激发PO片段荧光的最佳方案用于有机磷酸盐的远程检测具有重要的实际意义。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
2.40
自引率
42.90%
发文量
84
期刊介绍: Atmospheric and Oceanic Optics  is an international peer reviewed journal that presents experimental and theoretical articles relevant to a wide range of problems of atmospheric and oceanic optics, ecology, and climate. The journal coverage includes: scattering and transfer of optical waves, spectroscopy of atmospheric gases, turbulent and nonlinear optical phenomena, adaptive optics, remote (ground-based, airborne, and spaceborne) sensing of the atmosphere and the surface, methods for solving of inverse problems, new equipment for optical investigations, development of computer programs and databases for optical studies. Thematic issues are devoted to the studies of atmospheric ozone, adaptive, nonlinear, and coherent optics, regional climate and environmental monitoring, and other subjects.
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