Light scattering by an oscillating dipole in a focused beam
Year: 2008
Authors: Zumofen G., Mojarad N.M., Agio M.
Autors Affiliation: 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.
Journal/Review: NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA C-GEOPHYSICS AND SPACE PHYSICS
Volume: 31 (4) Pages from: 475 to: 485
KeyWords: Electromagnetic Diffraction; Optical-systems; Multipole Expansion; Wave-fields; Image Field; Laser-beam; One-atom; Single; Representation; PhotonsDOI: 10.1393/ncc/i2009-10316-9Citations: 10data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-10-20References taken from IsiWeb of Knowledge: (subscribers only)