BRDF Measurements and Mie Scattering Analysis of Spherical Particles on Optical Surfaces

1991 ◽  
pp. 107-121
Author(s):  
Robert J. Champetier ◽  
Michael Sobelman ◽  
Julio R. Blanco
Keyword(s):  
Mie Scattering ◽  
Spherical Particles ◽  
Optical Surfaces

scholarly journals Analysis of transmission characteristics of non-line-of-sight ultraviolet light under complex channel conditions

2021 ◽  
Vol 336 ◽  
pp. 01012
Author(s):  
Xuan Zheng ◽  
Yanfeng Tang ◽  
Jingyi Du
Keyword(s):  
Ultraviolet Light ◽  
Path Loss ◽  
Mie Scattering ◽  
Spherical Particles ◽  
Dust Particles ◽  
Line Of Sight ◽  
Communication Link ◽  
Communication Quality ◽  
Long Distance ◽  
Non Line Of Sight

Using the multiple scattering model of non-line-of-sight ultraviolet light to simulate and analyze the atmospheric channel characteristics in the complex environment of haze and dust. The Mie scattering theory and T matrix method are used to analyze the path loss of spherical particles and non-spherical particles with particle concentration at different communication distances. The results show that when the communication distance is less than 50 meters, the communication quality under severe haze is the best, and for long-distance communication, the path loss under severe haze increases almost proportionally. In the non-line-of-sight ultraviolet light communication link, the higher the concentration of dust particles, the better the communication quality of the non-line-of-sight ultraviolet light communication transmission. Analysis of the scattering coefficient of spherical particles is significantly greater than that of non-spherical particles.

scholarly journals Anomalous forward scattering of gain-assisted dielectric shell-coated metallic core spherical particles

Nanophotonics ◽  
2016 ◽  
Vol 6 (5) ◽  
pp. 1063-1072 ◽  
Author(s):  
Fei Shen ◽  
Ning An ◽  
Yifei Tao ◽  
Hongping Zhou ◽  
Zhaoneng Jiang ◽  
...  
Keyword(s):  
Forward Direction ◽  
Mie Scattering ◽  
Forward Scattering ◽  
Spherical Particles ◽  
Optical Antennas ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Dielectric Shell ◽  
Weak Scattering ◽  
Order Of Magnitude

AbstractWe have investigated the scattering properties of an individual core-shell nanoparticle using the Mie theory, which can be tuned to support both electric and magnetic modes simultaneously. In general, the suppression of forward scattering can be realized by the second Kerker condition. Here, a novel mechanism has to be adopted to explain zero-forward scattering, which originates from the complex interactions between dipolar and quadrupolar modes. However, for lossy and lossless core-shell spherical nanoparticles, zero-forward scattering can never be achieved because the real parts of Mie expansion coefficients are always positive. By adding proper gain in dielectric shell, zero-forward scattering can be found at certain incident wavelengths, which means that all electric and magnetic responses in Mie scattering can be counteracted totally in the forward direction. In addition, if the absolute values of dipolar and quadrupolar terms are in the same order of magnitude, the local scattering minimum and maximum can be produced away from the forward and backward directions due to the interacting effect between the dipolar and quadrupolar terms. Furthermore, by adding suitable gain in shell, super-forward scattering can also be realized at certain incident wavelengths. We also demonstrated that anomalously weak scattering or superscattering could be obtained for the core-shell nanoparticles with suitable gain in shell. In particular, for such a choice of suitable gain in shell, we can obtain zero-forward scattering and anomalously weak scattering at the same wavelength as well as super-forward scattering at another wavelength. These features may provide new opportunities for cloaking, plasmonic lasers, optical antennas, and so on.

Atmospheric Scattering

2017 ◽  
Author(s):  
Kelly Chance ◽  
Randall V. Martin
Keyword(s):  
Function Approximation ◽  
Legendre Polynomials ◽  
Rayleigh Scattering ◽  
Scattered Light ◽  
Incident Light ◽  
Mie Scattering ◽  
Spherical Particles ◽  
Atmospheric Scattering ◽  
Phase Functions ◽  
Scatterer Size

This chapter describes elastic scattering events, where the wavelength of the scattered light is unchanged from that of the incident light and conservative scattering, scattering without absorption, sometimes closely approximated in clouds. The scattering regime, scattering versus wavelengths and scatterer size are introduced. Polarization in scattering is described by the Stokes vector and the polarization ellipse. Molecular (Rayleigh) scattering is presented and its atmospherically-important inelastic component, Raman scattering (the Ring effect) quantified. Mie scattering for spherical particles is described as is the commonly-used Henyey-Greenstein Mie phase function approximation. Non-spherical scatterers are introduced. The Ångstrom exponent and the expansion of phase functions in Legendre polynomials are described.

Measurement of Mie Scattering Intensities from Monodispersed Spherical Particles as a Function of Wavelength

1973 ◽  
Vol 12 (4) ◽  
pp. 779 ◽  
Author(s):  
A. Cohen ◽  
V. E. Derr ◽  
G. T. McNice ◽  
R. E. Cupp
Keyword(s):  
Mie Scattering ◽  
Spherical Particles

scholarly journals Ramsauer approach to Mie scattering of light on spherical particles

2009 ◽  
Vol 80 (3) ◽  
pp. 035403 ◽  
Author(s):  
K Louedec ◽  
S Dagoret-Campagne ◽  
M Urban
Keyword(s):  
Mie Scattering ◽  
Spherical Particles ◽  
Scattering Of Light

Nonlinear Mie scattering from spherical particles

2004 ◽  
Vol 70 (24) ◽  
Author(s):  
Y. Pavlyukh ◽  
W. Hübner
Keyword(s):  
Mie Scattering ◽  
Spherical Particles
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