当前位置: X-MOL 学术J. Opt. Soc. Am. A › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Tunneling optical resonances in light-droplet interactions: simulations of spaceborne cloud droplet observations.
Journal of the Optical Society of America A ( IF 1.4 ) Pub Date : 2019-12-01 , DOI: 10.1364/josaa.36.002076
Rouba Yaacoub , Olivier Pujol , Philippe Dubuisson

A fruitful approach for light-droplet interaction in atmospheric optics, the quantum optical analogy combined with partial wave analysis, is used to characterize (location, width) very sharp tunneling optical resonances (TORs). For this purpose, a fast and flexible technique of computation, the transfer matrix method, has been developed; it is described herein. This paper proposes explicit calculations of TORs, considering isolated droplets and a droplet population, and so goes further than earlier studies. Applied in the context of POLDER observations, from the visible to the near infrared, it is shown that TORs enhance cross sections with respect to Mie's theory as currently computed in atmospheric optics. Precisely, for a typical warm cloud droplet population, this enhancement can reach almost 30% in the case of absorption. Scattering and extinction cross sections are also higher than those of Mie's theory, but to a lesser extent. As a conclusion, it is suggested that tunneling should be taken into account more explicitly when addressing light scattering by droplets. No scattering inversion technique is investigated in this paper, but for the time being, the results presented can be used as look-up tables (at least orders of magnitude) for practical computations in atmospheric remote sensing. Finally, the approach presented herein is proposed as a perspective to be used in different situations involving other spherical (or almost spherical) scatterers that otherwise should be addressed approximately.

中文翻译:

在光滴相互作用中隧穿光学共振:模拟星载云滴观测。

大气光学中的光滴相互作用的一种卓有成效的方法是将量子光学类比与部分波分析相结合,用于表征(位置,宽度)非常尖锐的隧道光学共振(TOR)。为此目的,已经开发了一种快速而灵活的计算技术,即传递矩阵法。在此进行描述。本文提出了TOR的显式计算,考虑了孤立的液滴和液滴总数,因此比以前的研究走得更远。应用于POLDER观测的背景下,从可见光到近红外,都表明TORs相对于当前大气光学中所计算的Mie理论,增强了横截面。精确地,对于典型的暖云小滴种群,在吸收的情况下,这种增强可以达到近30%。散射截面和消光截面也高于米氏理论,但程度较小。结论是,建议在解决液滴的光散射问题时应更明确地考虑隧穿。本文没有研究散射反演技术,但是目前,给出的结果可以用作查找表(至少几个数量级),用于大气遥感的实际计算。最后,本文提出的方法被提出作为一种透视图,可用于涉及其他球形(或几乎球形)散射体的不同情况,否则应大致解决。建议在解决液滴的光散射问题时应更明确地考虑隧道效应。本文没有研究散射反演技术,但是目前,给出的结果可以用作查找表(至少几个数量级),用于大气遥感的实际计算。最后,本文提出的方法被提出作为一种透视图,可用于涉及其他球形(或几乎球形)散射体的不同情况,否则应大致解决。建议在解决液滴的光散射问题时应更明确地考虑隧道效应。本文没有研究散射反演技术,但是目前,给出的结果可以用作查找表(至少几个数量级),用于大气遥感的实际计算。最后,本文提出的方法被提出作为一种透视图,可用于涉及其他球形(或几乎球形)散射体的不同情况,否则应大致解决。给出的结果可以用作查找表(至少几个数量级),用于大气遥感中的实际计算。最后,本文提出的方法被提出作为一种透视图,可用于涉及其他球形(或几乎球形)散射体的不同情况,否则应大致解决。给出的结果可以用作查找表(至少几个数量级),用于大气遥感中的实际计算。最后,本文提出的方法被提出作为一种透视图,可用于涉及其他球形(或几乎球形)散射体的不同情况,否则应大致解决。
更新日期:2019-11-28
down
wechat
bug