316 citations · 688 across the 5 of their papers we have counts for
10 papers
Surface-enhanced Raman scattering and fluorescence near metal nanoparticles
Peter Johansson, Hongxing Xu, Mikael Käll +1
We present a general model study of surface-enhanced resonant Raman scattering and fluorescence, focusing on the interplay between electromagnetic (EM) effects and the molecular dy…
Unified treatment of fluorescence and Raman scattering processes near metal surfaces
Hongxing Xu, Xue-Hua Wang, Martin P. Persson +3
We present a general model study of surface-enhanced resonant Raman scattering and fluorescence focusing on the interplay between electromagnetic effects and the molecular dynamics…
Resonance shift effects in apertureless scanning near-field optical microscopy
J. A. Porto, P. Johansson, S. P. Apell +1
We develop a theory to study apertureless scanning near-field optical microscopy which takes into account retardation, higher multipoles of the tip, and the multiple scattering bet…
Light emission from Na/Cu(111) induced by a scanning tunneling microscope
Peter Johansson, Germar Hoffmann, Richard Berndt
Measurements of light emission from a scanning tunneling microscope probing a Na overlayer on the (111) surface of Cu are reported along with results of a model calculation that es…
Two-Electron Photon Emission From Metallic Quantum Wells
Germar Hoffmann, Richard Berndt, Peter Johansson
Unusual emission of visible light is observed in scanning tunneling microscopy of the quantum well system Na on Cu(111). Photons are emitted at energies exceeding the energy of the…
Light scattering from disordered overlayers of metallic nanoparticles
Peter Johansson
We develop a theory for light scattering from a disordered layer of metal nanoparticles resting on a sample. Averaging over different disorder realizations is done by a coherent po…