Scattering characteristics of relativistically moving concentrically layered spheres

Timothy J. Garner; Akhlesh Lakhtakia; James K. Breakall; Craig F. Bohren

doi:10.1016/j.physleta.2017.11.036

Scattering characteristics of relativistically moving concentrically layered spheres

Timothy J. Garner, Akhlesh Lakhtakia, James K. Breakall, Craig F. Bohren

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

The energy extinction cross section of a concentrically layered sphere varies with velocity as the Doppler shift moves the spectral content of the incident signal in the sphere's co-moving inertial reference frame toward or away from resonances of the sphere. Computations for hollow gold nanospheres show that the energy extinction cross section is high when the Doppler shift moves the incident signal's spectral content in the co-moving frame near the wavelength of the sphere's localized surface plasmon resonance. The energy extinction cross section of a three-layer sphere consisting of an olivine-silicate core surrounded by a porous and a magnetite layer, which is used to explain extinction caused by interstellar dust, also depends strongly on velocity. For this sphere, computations show that the energy extinction cross section is high when the Doppler shift moves the spectral content of the incident signal near either of olivine-silicate's two localized surface phonon resonances at 9.7 μm and 18 μm.

Original language	English (US)
Pages (from-to)	362-366
Number of pages	5
Journal	Physics Letters, Section A: General, Atomic and Solid State Physics
Volume	382
Issue number	5
DOIs	https://doi.org/10.1016/j.physleta.2017.11.036
State	Published - Feb 6 2018

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1016/j.physleta.2017.11.036

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title = "Scattering characteristics of relativistically moving concentrically layered spheres",

abstract = "The energy extinction cross section of a concentrically layered sphere varies with velocity as the Doppler shift moves the spectral content of the incident signal in the sphere's co-moving inertial reference frame toward or away from resonances of the sphere. Computations for hollow gold nanospheres show that the energy extinction cross section is high when the Doppler shift moves the incident signal's spectral content in the co-moving frame near the wavelength of the sphere's localized surface plasmon resonance. The energy extinction cross section of a three-layer sphere consisting of an olivine-silicate core surrounded by a porous and a magnetite layer, which is used to explain extinction caused by interstellar dust, also depends strongly on velocity. For this sphere, computations show that the energy extinction cross section is high when the Doppler shift moves the spectral content of the incident signal near either of olivine-silicate's two localized surface phonon resonances at 9.7 μm and 18 μm.",

author = "Garner, {Timothy J.} and Akhlesh Lakhtakia and Breakall, {James K.} and Bohren, {Craig F.}",

note = "Funding Information: The authors thank Prof. Thomas Henning (Max-Planck-Institut f{\"u}r Astronomie, Heidelberg) for information about interstellar dust. T. J. G. was supported by a Graduate Excellence Fellowship from the College of Engineering, Pennsylvania State University . A. L. is grateful for the support of the Charles Godfrey Binder Endowment at the Pennsylvania State University . Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

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doi = "10.1016/j.physleta.2017.11.036",

language = "English (US)",

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AU - Garner, Timothy J.

AU - Lakhtakia, Akhlesh

AU - Breakall, James K.

AU - Bohren, Craig F.

N1 - Funding Information: The authors thank Prof. Thomas Henning (Max-Planck-Institut für Astronomie, Heidelberg) for information about interstellar dust. T. J. G. was supported by a Graduate Excellence Fellowship from the College of Engineering, Pennsylvania State University . A. L. is grateful for the support of the Charles Godfrey Binder Endowment at the Pennsylvania State University . Publisher Copyright: © 2017 Elsevier B.V.

PY - 2018/2/6

Y1 - 2018/2/6

N2 - The energy extinction cross section of a concentrically layered sphere varies with velocity as the Doppler shift moves the spectral content of the incident signal in the sphere's co-moving inertial reference frame toward or away from resonances of the sphere. Computations for hollow gold nanospheres show that the energy extinction cross section is high when the Doppler shift moves the incident signal's spectral content in the co-moving frame near the wavelength of the sphere's localized surface plasmon resonance. The energy extinction cross section of a three-layer sphere consisting of an olivine-silicate core surrounded by a porous and a magnetite layer, which is used to explain extinction caused by interstellar dust, also depends strongly on velocity. For this sphere, computations show that the energy extinction cross section is high when the Doppler shift moves the spectral content of the incident signal near either of olivine-silicate's two localized surface phonon resonances at 9.7 μm and 18 μm.

AB - The energy extinction cross section of a concentrically layered sphere varies with velocity as the Doppler shift moves the spectral content of the incident signal in the sphere's co-moving inertial reference frame toward or away from resonances of the sphere. Computations for hollow gold nanospheres show that the energy extinction cross section is high when the Doppler shift moves the incident signal's spectral content in the co-moving frame near the wavelength of the sphere's localized surface plasmon resonance. The energy extinction cross section of a three-layer sphere consisting of an olivine-silicate core surrounded by a porous and a magnetite layer, which is used to explain extinction caused by interstellar dust, also depends strongly on velocity. For this sphere, computations show that the energy extinction cross section is high when the Doppler shift moves the spectral content of the incident signal near either of olivine-silicate's two localized surface phonon resonances at 9.7 μm and 18 μm.

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IS - 5

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Scattering characteristics of relativistically moving concentrically layered spheres

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