title: Nanoscale Fourier-transform imaging with magnetic resonance force microscopy.
abstract: We present a versatile method for Fourier encoding the spatial distribution of spins detected by magnetic resonance force microscopy. Shuttling a magnetic particle in synchrony with an rf pulse sequence causes spins in a constant-field slice near the particle to precess at a rate proportional to their x or y coordinate. A two-dimensional spin-density map is recovered by a linear Fourier transform of a set of integrated force signals. Performance of the rf sequence is demonstrated experimentally and numerical simulations show that the method can achieve nanoscale resolution. Our approach offers a new route to manipulating spin wave functions down to the atomic scale.
authors.affiliation: Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853-1301, USA.
authors.forename: J G
authors.initials: JG
authors.lastname: Kempf
authors.forename: J A
authors.initials: JA
authors.lastname: Marohn
mesh_terms: D005583:Fourier Analysis; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D018625:Microscopy, Atomic Force / Q000379:methods*