40th National Conference on Theoretical Physics (NCTP-40)
Hội nghị Vật lý lý thuyết toàn quốc lần thứ 40
Đà Lạt, 27-29 July 2015
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ProgramP.35 -- Poster, NCTP-40 Date: Tuesday, 28 July 2015> Time: 08h30 - 10h00> Second quantization model for surface plasmon polariton for spherical shape of metallic nano particlesCan Thi Thuy Thuy (1), Dao Thi Thuy Nga (2). Chu Thuy Anh (1), Dao Thu Ha (1), Tran Thi Thanh Van (1), Nguyen Ai Viet (Belarus) (1) (1) Institute of Physics, 10 Dao Tan, Ba-Dinh, Hanoi; (2)Bac Ninh Department of Education and Training; It is well known that surface plasmon polaritons exhibit both wave and particle properties. Like photons, the second quantization formalism can be established for surface plasmon polaritons. The case of planar geometry with Kretschrmann configuration of excitation surface plasmon was studied in our previous article. In this work we continue to investigate surface plasmon polariton modes in a spherical metal nano particle. A model effective Hamiltonian with interaction parameters is proposed in second quantization representation for system of surface plasmons and photon. Using the Bogoliubov transformation technique, the dispersion relations of surface plasmon polariton were calculated. The surface plasmon – photon vertexes also are found for spherical geometry. The conditions for excitation surface plasmon of the cases of spherical and planar geometries were compared, and a possible existence of Plasmon radiation modes is also discussed. Presenter: Đào Thị Thúy Nga |
Institute of Physics, VAST
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Center for Theoretical Physics |
Center for Computational Physics
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