95 citations · 95 across the 1 of their papers we have counts for
3 papers
cond-mat2002★ 95 cited
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…
cond-mat2001
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,…
cond-mat2000
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…