Absorption and scattering of light from ensembles of randomly oriented aggregates
Karlsson, Anders LU ; Tan, Yi LU and Bengtsson, Per-Erik LU
(2013)
In Journal of the Optical Society of America A
30(3).
p.316-324
- Abstract
- This paper presents one approach to the absorption and scattering of light from aggregates of primary particles. The primary particles are sphere like and small compared to the wavelength, whereas the aggregate can be large compared to the wavelength. This situation applies to when soot particles formed in flames are measured using methods based on laser light. The method presented in this work, called generalized RDG (G-RDG), leads to closed form expressions for the scattered intensity and the absorbed power of an ensemble of aggregates with random positions and orientations. The expressions ensure a fast and accurate numerical evaluation of the scattering and absorption from ensembles of aggregates. The numerical results are compared... (More)
- This paper presents one approach to the absorption and scattering of light from aggregates of primary particles. The primary particles are sphere like and small compared to the wavelength, whereas the aggregate can be large compared to the wavelength. This situation applies to when soot particles formed in flames are measured using methods based on laser light. The method presented in this work, called generalized RDG (G-RDG), leads to closed form expressions for the scattered intensity and the absorbed power of an ensemble of aggregates with random positions and orientations. The expressions ensure a fast and accurate numerical evaluation of the scattering and absorption from ensembles of aggregates. The numerical results are compared with the ones obtained from the T-matrix method and the discrete dipole approximation method. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3363054
- author
- Karlsson, Anders
LU
; Tan, Yi
LU
and Bengtsson, Per-Erik
LU
- organization
- publishing date
- 2013
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of the Optical Society of America A
- volume
- 30
- issue
- 3
- pages
- 316 - 324
- publisher
- Optical Society of America
- external identifiers
-
- wos:000316099600005
- scopus:84875528839
- ISSN
- 1084-7529
- language
- English
- LU publication?
- yes
- id
- e5b9566d-cb92-4e39-9ab9-e1ee24b1152d (old id 3363054)
- date added to LUP
- 2016-04-01 14:14:27
- date last changed
- 2022-03-29 19:56:36
@article{e5b9566d-cb92-4e39-9ab9-e1ee24b1152d,
abstract = {{This paper presents one approach to the absorption and scattering of light from aggregates of primary particles. The primary particles are sphere like and small compared to the wavelength, whereas the aggregate can be large compared to the wavelength. This situation applies to when soot particles formed in flames are measured using methods based on laser light. The method presented in this work, called generalized RDG (G-RDG), leads to closed form expressions for the scattered intensity and the absorbed power of an ensemble of aggregates with random positions and orientations. The expressions ensure a fast and accurate numerical evaluation of the scattering and absorption from ensembles of aggregates. The numerical results are compared with the ones obtained from the T-matrix method and the discrete dipole approximation method.}},
author = {{Karlsson, Anders and Tan, Yi and Bengtsson, Per-Erik}},
issn = {{1084-7529}},
language = {{eng}},
number = {{3}},
pages = {{316--324}},
publisher = {{Optical Society of America}},
series = {{Journal of the Optical Society of America A}},
title = {{Absorption and scattering of light from ensembles of randomly oriented aggregates}},
volume = {{30}},
year = {{2013}},
}