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General Theory of Scalar Wave Scattering by a Composite Particle, One Particle Imbedded in Another
Byong-ChonPark,Jin Seung Kim 한국물리학회 2016 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.68 No.7
A general theory of scalar wave scattering by a composite particle, consisting of a smaller particle completely imbedded in a larger particle, is developed to give the coefficients of scattering and transmission in the form of recurrence formulae. Iterative application of the formulae yields the coefficients in the forms of power series of the coefficients obtained in single particle scattering theories, and each term of the power series can be interpreted as a multiple scattering of the wave between the two component particles in increasingly higher order.
Theory of Scalar Wave Scattering by a Sphere and a Planar Substrate
Byong-ChonPark,Jin Seung Kim 한국물리학회 2018 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.73 No.10
The problem of scalar wave scattering by a sphere on or near a planar substrate is analytically solved. The solution is a set of wave functions coming in the form of infinite series of spherical and plane waves. In air, the incident plane wave is either scattered by the sphere or re ected from the substrate. A part of these scattered or re ected waves propagate to the other object where it is re ected and scattered again. Such processes of scattering and re ection repeat in turn indefinitely to generate multiply scattered waves, which are represented in the corresponding terms in the infinite series. The term in the series can be arranged in a recognizable manner to explicitly reveal the involved process and the multiplicity of scattering.
Calculation of Optical Trapping Forces on Microspheres in the Ray Optics Regime
Kang-BinIm,Dan-YoulLee,Hyun-IkKim,Cha-HwanOh,Seok-HoSong,Pill-SooKim,Byong-ChonPark 한국물리학회 2002 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.40 No.5
The optical trapping forces on a microsphere were calculated by using the ray optics model. The wrong symmetry or mirror image in the ray optics model was corrected to calculate more precisely the optical trapping forces on a dielectric microsphere in a focused laser beam. We compared the optical trapping forces calculated by using the corrected symmetry with those calculated by using the existing models and with the experimental results. The forces calculated by using the corrected symmetry were in better agreement with the experimental results than those calculated by using existing models.e80