Simultaneous determination of refractive index and size of spherical dielectric particles from light scattering data

Petr Chylek; V. Ramaswamy; A. Ashkin; J. M. Dziedzic

doi:10.1364/AO.22.002302

Simultaneous determination of refractive index and size of spherical dielectric particles from light scattering data

Petr Chylek, V. Ramaswamy, A. Ashkin, J. M. Dziedzic

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144 Scopus citations

Abstract

The diameter and refractive index of micrometer sized spherical dielectric particles are simultaneously deduced using the wavelength dependence of backscattering data from optically levitated particles. The accuracy of the results is set by experimental errors in the determination of the wavelength of backscatter resonance peaks and the ratio of slopes of specified peaks. At present the refractive index and diameter can be deduced with relative errors of 5 X 10^-5. This represents the most accurate determination of absolute size and refractive index yet made by light scattering. A reduction of these errors by an order of magnitude is possible. We assume a priori knowledge of diameter and refractive index with accuracy of 10^-1 and 5 X 10^-3, respectively.

Original language	English (US)
Pages (from-to)	2302-2307
Number of pages	6
Journal	Applied Optics
Volume	22
Issue number	15
DOIs	https://doi.org/10.1364/AO.22.002302
State	Published - Aug 1983
Externally published	Yes

All Science Journal Classification (ASJC) codes

Engineering (miscellaneous)
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

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10.1364/AO.22.002302

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title = "Simultaneous determination of refractive index and size of spherical dielectric particles from light scattering data",

abstract = "The diameter and refractive index of micrometer sized spherical dielectric particles are simultaneously deduced using the wavelength dependence of backscattering data from optically levitated particles. The accuracy of the results is set by experimental errors in the determination of the wavelength of backscatter resonance peaks and the ratio of slopes of specified peaks. At present the refractive index and diameter can be deduced with relative errors of 5 X 10-5. This represents the most accurate determination of absolute size and refractive index yet made by light scattering. A reduction of these errors by an order of magnitude is possible. We assume a priori knowledge of diameter and refractive index with accuracy of 10-1 and 5 X 10-3, respectively.",

author = "Petr Chylek and V. Ramaswamy and A. Ashkin and Dziedzic, {J. M.}",

year = "1983",

month = aug,

doi = "10.1364/AO.22.002302",

language = "English (US)",

volume = "22",

pages = "2302--2307",

journal = "Applied Optics",

issn = "1559-128X",

publisher = "Optica Publishing Group",

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T1 - Simultaneous determination of refractive index and size of spherical dielectric particles from light scattering data

AU - Chylek, Petr

AU - Ramaswamy, V.

AU - Ashkin, A.

AU - Dziedzic, J. M.

PY - 1983/8

Y1 - 1983/8

N2 - The diameter and refractive index of micrometer sized spherical dielectric particles are simultaneously deduced using the wavelength dependence of backscattering data from optically levitated particles. The accuracy of the results is set by experimental errors in the determination of the wavelength of backscatter resonance peaks and the ratio of slopes of specified peaks. At present the refractive index and diameter can be deduced with relative errors of 5 X 10-5. This represents the most accurate determination of absolute size and refractive index yet made by light scattering. A reduction of these errors by an order of magnitude is possible. We assume a priori knowledge of diameter and refractive index with accuracy of 10-1 and 5 X 10-3, respectively.

AB - The diameter and refractive index of micrometer sized spherical dielectric particles are simultaneously deduced using the wavelength dependence of backscattering data from optically levitated particles. The accuracy of the results is set by experimental errors in the determination of the wavelength of backscatter resonance peaks and the ratio of slopes of specified peaks. At present the refractive index and diameter can be deduced with relative errors of 5 X 10-5. This represents the most accurate determination of absolute size and refractive index yet made by light scattering. A reduction of these errors by an order of magnitude is possible. We assume a priori knowledge of diameter and refractive index with accuracy of 10-1 and 5 X 10-3, respectively.

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DO - 10.1364/AO.22.002302

M3 - Article

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AN - SCOPUS:0020798956

SN - 1559-128X

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EP - 2307

JO - Applied Optics

JF - Applied Optics

IS - 15

ER -

Simultaneous determination of refractive index and size of spherical dielectric particles from light scattering data

Abstract

All Science Journal Classification (ASJC) codes

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