Abstract

A macroscopic self-consistent model for photon scanning tunneling microscopy with an uncoated fiber tip is developed by use of integral plane-wave representations of the total electric field in two-dimensional geometry. The model framework allows one to treat the incident field with an arbitrary angular spectrum and the presence of a thin-layer medium with a subwavelength structure on the sample surface. Imaging with the photon scanning tunneling microscope and light scattering near a phase-conjugating mirror are considered with our model by use of numerical simulations. We show that the near-field optical images provided by the microscope can be quite different from the light intensity distributions that exist near the sample surface in the absence of the fiber tip. We demonstrate that the self-consistent field at the site of a scatterer placed in front of a phase-conjugating mirror can be significantly enhanced as a result of multiple phase conjugation of the scattered light.

© 1996 Optical Society of America

Theoretical model for phase conjugation of optical near fields

Sergey I. Bozhevolnyi, Elena A. Bozhevolnaya, and Svend Berntsen
J. Opt. Soc. Am. A 12(12) 2645-2654 (1995)

Extension of the macroscopic model for reflection near-field microscopy: regularization and image formation

S. Bozhevolnyi, S. Berntsen, and E. Bozhevolnaya
J. Opt. Soc. Am. A 11(2) 609-617 (1994)

Macroscopic self-consistent model for external-reflection near-field microscopy

S. Berntsen, E. Bozhevolnaya, and S. Bozhevolnyi
J. Opt. Soc. Am. A 10(5) 878-885 (1993)

Analysis of image formation with a photon scanning tunneling microscope

F. de Fornel, P. M. Adam, L. Salomon, J. P. Goudonnet, A. Sentenac, R. Carminati, and J.-J. Greffet
J. Opt. Soc. Am. A 13(1) 35-45 (1996)

Near-field optics with uncoated fiber tips: light confinement and spatial resolution

Sergey I. Bozhevolnyi and Brian Vohnsen
J. Opt. Soc. Am. B 14(7) 1656-1663 (1997)