Open-source implementation of the discrete-dipole approximation for a scatterer in an absorbing host medium

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Open-source implementation of the discrete-dipole approximation for a scatterer in an absorbing host medium. / Yurkin, M. A.; Moskalensky, A. E.

In: Journal of Physics: Conference Series, Vol. 2015, No. 1, 012167, 17.11.2021.

Research output: Contribution to journal › Conference article › peer-review

BibTeX

@article{fd362c682768402d8f39d6e4788de40c,

title = "Open-source implementation of the discrete-dipole approximation for a scatterer in an absorbing host medium",

abstract = "Theoretical description of light scattering by single particles is a well-developed field, but most of it applies to particles located in vacuum or non-absorbing host medium. Although the case of absorbing host medium has also been discussed in literature, a complete description and unambiguous definition of scattering quantities are still lacking. Similar situation is for simulation methods – some computer codes exist, but their choice is very limited, compared to the case of vacuum. Here we describe the extension of the popular open-source code ADDA to support the absorbing host medium. It is based on the discrete dipole approximation and is, thus, applicable to particles with arbitrary shape and internal structure. We performed test simulations for spheres and compared them with that using the Lorenz-Mie theory. Moreover, we developed a unified description of the energy budget for scattering by a particle in a weakly absorbing host medium, relating all existing local (expressed as volume integrals over scatterer volume) and far-field scattering quantities.",

author = "Yurkin, {M. A.} and Moskalensky, {A. E.}",

note = "Funding Information: The work was supported by the Russian Science Foundation (Grant No. 18-12-00052). Publisher Copyright: {\textcopyright} 2021 Institute of Physics Publishing. All rights reserved.; 6th International Conference on Metamaterials and Nanophotonics, METANANO 2021 ; Conference date: 13-09-2021 Through 17-09-2021",

year = "2021",

month = nov,

day = "17",

doi = "10.1088/1742-6596/2015/1/012167",

language = "English",

volume = "2015",

journal = "Journal of Physics: Conference Series",

issn = "1742-6588",

publisher = "IOP Publishing Ltd.",

number = "1",

}

RIS

TY - JOUR

T1 - Open-source implementation of the discrete-dipole approximation for a scatterer in an absorbing host medium

AU - Yurkin, M. A.

AU - Moskalensky, A. E.

PY - 2021/11/17

Y1 - 2021/11/17

N2 - Theoretical description of light scattering by single particles is a well-developed field, but most of it applies to particles located in vacuum or non-absorbing host medium. Although the case of absorbing host medium has also been discussed in literature, a complete description and unambiguous definition of scattering quantities are still lacking. Similar situation is for simulation methods – some computer codes exist, but their choice is very limited, compared to the case of vacuum. Here we describe the extension of the popular open-source code ADDA to support the absorbing host medium. It is based on the discrete dipole approximation and is, thus, applicable to particles with arbitrary shape and internal structure. We performed test simulations for spheres and compared them with that using the Lorenz-Mie theory. Moreover, we developed a unified description of the energy budget for scattering by a particle in a weakly absorbing host medium, relating all existing local (expressed as volume integrals over scatterer volume) and far-field scattering quantities.

AB - Theoretical description of light scattering by single particles is a well-developed field, but most of it applies to particles located in vacuum or non-absorbing host medium. Although the case of absorbing host medium has also been discussed in literature, a complete description and unambiguous definition of scattering quantities are still lacking. Similar situation is for simulation methods – some computer codes exist, but their choice is very limited, compared to the case of vacuum. Here we describe the extension of the popular open-source code ADDA to support the absorbing host medium. It is based on the discrete dipole approximation and is, thus, applicable to particles with arbitrary shape and internal structure. We performed test simulations for spheres and compared them with that using the Lorenz-Mie theory. Moreover, we developed a unified description of the energy budget for scattering by a particle in a weakly absorbing host medium, relating all existing local (expressed as volume integrals over scatterer volume) and far-field scattering quantities.

UR - http://www.scopus.com/inward/record.url?scp=85120902655&partnerID=8YFLogxK

U2 - 10.1088/1742-6596/2015/1/012167

DO - 10.1088/1742-6596/2015/1/012167

M3 - Conference article

AN - SCOPUS:85120902655

VL - 2015

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

SN - 1742-6588

IS - 1

M1 - 012167

T2 - 6th International Conference on Metamaterials and Nanophotonics, METANANO 2021

Y2 - 13 September 2021 through 17 September 2021

ER -

ID: 34950961