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Articles 1 - 4 of 4
Full-Text Articles in Physical Sciences and Mathematics
Internal Caustic Structure Of Illuminated Liquid Droplets, James A. Lock, Edward A. Hovenac
Internal Caustic Structure Of Illuminated Liquid Droplets, James A. Lock, Edward A. Hovenac
Physics Faculty Publications
The internal electric field of an illuminated liquid droplet is studied in detail with the use of both wave theory and ray theory. The internal field attains its maximum values on the caustics within the droplet. Ray theory is used to determine the equations of these caustics and the density of rays on them. The Debye-series expansion of the interior-field Mie amplitudes is used to calculate the wave-theory version of these caustics. The physical interpretation of the sources of stimulated Raman scattering and fluorescence emission within a liquid droplet is then given.
Mie Theory Model Of The Corona, James A. Lock, Leiming Yang
Mie Theory Model Of The Corona, James A. Lock, Leiming Yang
Physics Faculty Publications
We performed a calculation of the corona colors that employed Mie theory to obtain the scattered light intensity. The scattered intensity was integrated over the visible spectrum for a number of different cloud droplet size distributions. The results were converted to chromaticity coordinates, convolved with the angular size of the sun, and plotted on the 1931 CIE chromaticity diagram. The results were compared to observations of multiple-ring coronas. It was found that, when using Mie theory to estimate cloud droplet sizes, water droplets with diameters in the 7-mu-m less-than-or-similar-to D less-than-or-similar-to 15-mu-m range produced the 13 multiple-ring coronas that were …
Light And Color In The Open Air: Introduction By The Feature Editor, James A. Lock, Craig F. Bohren
Light And Color In The Open Air: Introduction By The Feature Editor, James A. Lock, Craig F. Bohren
Physics Faculty Publications
No abstract provided.
Interference Between Diffraction And Transmission In The Mie Extinction Efficiency, James A. Lock, Leiming Yang
Interference Between Diffraction And Transmission In The Mie Extinction Efficiency, James A. Lock, Leiming Yang
Physics Faculty Publications
We give simple analytic and numerical demonstrations showing that the interference structure in the Mie extinction efficiency of a sphere is caused by the interference of the light waves that are diffracted and transmitted in the near-forward direction.