316 citations · 688 across the 5 of their papers we have counts for
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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 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…
Theory of a magnetic microscope with nanometer resolution
Peter Johansson, S. Peter Apell, D. R. Penn
We propose a theory for a type of apertureless scanning near field microscopy that is intended to allow the measurement of magnetism on a nanometer length scale. A scanning probe,…
Circularly polarized light emission in scanning tunneling microscopy of magnetic systems
S. P. Apell, D. R. Penn, P. Johansson
Light is produced when a scanning tunneling microscope is used to probe a metal surface. Recent experiments on cobalt utilizing a tungsten tip found that the light is circularly po…
Light emission from a scanning tunneling microscope: Fully retarded calculation
Peter Johansson
The light emission rate from a scanning tunneling microscope (STM) scanning a noble metal surface is calculated taking retardation effects into account. As in our previous, non-ret…