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Light Scattering by Small Particles : an Ellipsoidal Model That Uses a Quasistatic Approach. / Farafonov, V. G.; Ustimov, V. I.; Prokopjeva, M. S.; Tulegenov, A. R.; Il'in, V. B.

в: OPTICS AND SPECTROSCOPY, Том 125, № 6, 12.2018, стр. 971-976.

Результаты исследований: Научные публикации в периодических изданияхстатьяРецензирование

Harvard

Farafonov, VG, Ustimov, VI, Prokopjeva, MS, Tulegenov, AR & Il'in, VB 2018, 'Light Scattering by Small Particles: an Ellipsoidal Model That Uses a Quasistatic Approach', OPTICS AND SPECTROSCOPY, Том. 125, № 6, стр. 971-976. https://doi.org/10.1134/S0030400X1812007X

APA

Vancouver

Author

Farafonov, V. G. ; Ustimov, V. I. ; Prokopjeva, M. S. ; Tulegenov, A. R. ; Il'in, V. B. / Light Scattering by Small Particles : an Ellipsoidal Model That Uses a Quasistatic Approach. в: OPTICS AND SPECTROSCOPY. 2018 ; Том 125, № 6. стр. 971-976.

BibTeX

@article{3262b6bf99204c16a5b3a099ad267ef1,
title = "Light Scattering by Small Particles: an Ellipsoidal Model That Uses a Quasistatic Approach",
abstract = "To describe light scattering by small nonspherical particles, we have constructed an ellipsoidal model using a quasistatic approximation. The semiaxes of the model ellipsoid are determined based on the requirement that the volumes of initial and model particles are equal, as well as the ratios of their maximum longitudinal and transverse dimensions. This ensures the closeness of the optical properties of initial and model particles. This approach has been applied to parallelepipeds, cylinders, and cones. The range of applicability has been determined by comparing the results of numerical calculations with approximate and rigorous methods. As a rigorous method, we have chosen the discrete dipole approximation (DDA), which is applicable to arbitrary nonspherical particles. We have shown that, for parallelepipeds and cylinders, the applicability range of the model is rather wide with respect to different parameters of the problem. At the same time, the model is less suitable for cones, and it should be completely avoided for oblate particles in the case when a plane TM wave is incident on particles perpendicularly to their symmetry axis. In general, the proposed approximation yields more accurate results and has a large range of applicability upon a decrease in the relative refractive index and an increase in the semiaxis ratio of the effective ellipsoid, a(ef)/b(ef), i.e., for strongly prolate and strongly oblate transparent particles.",
author = "Farafonov, {V. G.} and Ustimov, {V. I.} and Prokopjeva, {M. S.} and Tulegenov, {A. R.} and Il'in, {V. B.}",
year = "2018",
month = dec,
doi = "10.1134/S0030400X1812007X",
language = "Английский",
volume = "125",
pages = "971--976",
journal = "OPTICS AND SPECTROSCOPY",
issn = "0030-400X",
publisher = "Pleiades Publishing",
number = "6",

}

RIS

TY - JOUR

T1 - Light Scattering by Small Particles

T2 - an Ellipsoidal Model That Uses a Quasistatic Approach

AU - Farafonov, V. G.

AU - Ustimov, V. I.

AU - Prokopjeva, M. S.

AU - Tulegenov, A. R.

AU - Il'in, V. B.

PY - 2018/12

Y1 - 2018/12

N2 - To describe light scattering by small nonspherical particles, we have constructed an ellipsoidal model using a quasistatic approximation. The semiaxes of the model ellipsoid are determined based on the requirement that the volumes of initial and model particles are equal, as well as the ratios of their maximum longitudinal and transverse dimensions. This ensures the closeness of the optical properties of initial and model particles. This approach has been applied to parallelepipeds, cylinders, and cones. The range of applicability has been determined by comparing the results of numerical calculations with approximate and rigorous methods. As a rigorous method, we have chosen the discrete dipole approximation (DDA), which is applicable to arbitrary nonspherical particles. We have shown that, for parallelepipeds and cylinders, the applicability range of the model is rather wide with respect to different parameters of the problem. At the same time, the model is less suitable for cones, and it should be completely avoided for oblate particles in the case when a plane TM wave is incident on particles perpendicularly to their symmetry axis. In general, the proposed approximation yields more accurate results and has a large range of applicability upon a decrease in the relative refractive index and an increase in the semiaxis ratio of the effective ellipsoid, a(ef)/b(ef), i.e., for strongly prolate and strongly oblate transparent particles.

AB - To describe light scattering by small nonspherical particles, we have constructed an ellipsoidal model using a quasistatic approximation. The semiaxes of the model ellipsoid are determined based on the requirement that the volumes of initial and model particles are equal, as well as the ratios of their maximum longitudinal and transverse dimensions. This ensures the closeness of the optical properties of initial and model particles. This approach has been applied to parallelepipeds, cylinders, and cones. The range of applicability has been determined by comparing the results of numerical calculations with approximate and rigorous methods. As a rigorous method, we have chosen the discrete dipole approximation (DDA), which is applicable to arbitrary nonspherical particles. We have shown that, for parallelepipeds and cylinders, the applicability range of the model is rather wide with respect to different parameters of the problem. At the same time, the model is less suitable for cones, and it should be completely avoided for oblate particles in the case when a plane TM wave is incident on particles perpendicularly to their symmetry axis. In general, the proposed approximation yields more accurate results and has a large range of applicability upon a decrease in the relative refractive index and an increase in the semiaxis ratio of the effective ellipsoid, a(ef)/b(ef), i.e., for strongly prolate and strongly oblate transparent particles.

U2 - 10.1134/S0030400X1812007X

DO - 10.1134/S0030400X1812007X

M3 - статья

VL - 125

SP - 971

EP - 976

JO - OPTICS AND SPECTROSCOPY

JF - OPTICS AND SPECTROSCOPY

SN - 0030-400X

IS - 6

ER -

ID: 40848134