Femtosecond tunneling response of surface plasmon polaritons
- 8 June 1998
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 72 (23), 3074-3076
- https://doi.org/10.1063/1.121545
Abstract
We obtain femtosecond (200 fs) time resolution using a scanning tunneling microscope on surface plasmon polaritons (SPPs) generated by two 100 fs laser beams in total internal reflection geometry. The tunneling gap dependence of the signal clearly indicates the tunneling origin of the signal and suggests that nanometer spatial resolution can be obtained together with femtosecond temporal resolution. This fast response, in contrast to the picosecond decay time of SPPs revealed by differential reflectivity measurements, can be attributed to a coherent superposition of SPPs rectified at the tunneling junction.Keywords
This publication has 13 references indexed in Scilit:
- Measuring voltage transients with an ultrafast scanning tunneling microscopeApplied Physics Letters, 1997
- Advances in picosecond scanning tunneling microscopy via junction mixingApplied Physics Letters, 1997
- Observation of coherent multiple scattering of surface plasmon polaritons on Ag and Au surfacesChemical Physics Letters, 1996
- Femtosecond Optical Spectroscopy and Scanning Probe MicroscopyThe Journal of Physical Chemistry, 1996
- The effect of the surface enhanced polariton field on the tunneling current of a STMPhysics Letters A, 1995
- Femtosecond spectroscopy of electron-electron and electron-phonon energy relaxation in Ag and AuPhysical Review B, 1995
- Ultrafast scanning probe microscopyApplied Physics Letters, 1993
- Decay Length of Surface Plasmons Determined with a Tunnelling MicroscopeEurophysics Letters, 1991
- Detection of surface plasmons by scanning tunneling microscopyJournal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures, 1991
- Die Bestimmung optischer Konstanten von Metallen durch Anregung von OberflächenplasmaschwingungenThe European Physical Journal A, 1971