Light scattering by an oscillating dipole in a focused beam
Anno: 2008
Autori: Zumofen G., Mojarad N.M., Agio M.
Affiliazione autori: ETH, Phys Chem Lab, Nanoopt Grp, CH-8093 Zurich, Switzerland.
Abstract: The interaction between a focused beam and a single classical oscillating dipole or a two-level system located at the focal spot is investigated. In particular, the ratio of the scattered to incident, power is studied in terms of the oscillator’s scattering cross-section a and the effective focal area A. Debye diffraction integrals are applied to calculate A and results are reported for a directional dipolar wave. Multipole expansion of the incident beam is then considered and the equivalence between this and the Debye diffraction approach is discussed. Finally, the phase change of the electric field upon the interaction with a single oscillator is studied.
Giornale/Rivista: NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA C-GEOPHYSICS AND SPACE PHYSICS
Volume: 31 (4) Da Pagina: 475 A: 485
Parole chiavi: Electromagnetic Diffraction; Optical-systems; Multipole Expansion; Wave-fields; Image Field; Laser-beam; One-atom; Single; Representation; PhotonsDOI: 10.1393/ncc/i2009-10316-9Citazioni: 10dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2025-05-18Riferimenti tratti da Isi Web of Knowledge: (solo abbonati)
