Direct Measurement of the Field Enhancement Caused by Surface Plasmons with the Scanning Tunneling Optical Microscope

1993 ◽  
pp. 281-286 ◽  
Author(s):  
H. Bielefeldt ◽  
B. Hecht ◽  
S. Herminghaus ◽  
J. Mlynek ◽  
O. Marti
1997 ◽  
Vol 11 (21) ◽  
pp. 2465-2510 ◽  
Author(s):  
Igor I. Smolyaninov

Recent development of novel scanning probe techniques such as Scanning Tunneling Microscopy (STM), Atomic Force Microscopy (AFM), and Near-Field Optical Microscopy (NFOM) has opened new ways to study local field distribution of surface electromagnetic waves. A lot of experimental efforts have been concentrated on the study of surface plasmons (SP). Different techniques allow to excite and probe SPs with wavelengths from 1 nm down to the optical range along its entire dispersion curve. Large number of phenomena have been studied directly, such as SP scattering by individual defects, strong and weak localization of SP, SP induced local field enhancement, light emission from the tunneling junction, etc. Scanning probe techniques allow not only topography and field mapping but also surface modification and lithography on the nanometer scale. Combination of these features in the same experimental setup proved to be extremely useful in SP studies. For example, some prototype two dimensional optical elements able to control SP propagation have been demonstrated.


2011 ◽  
Vol 83 (20) ◽  
Author(s):  
Miklós Lenner ◽  
Péter Rácz ◽  
Péter Dombi ◽  
Győző Farkas ◽  
Norbert Kroó

2003 ◽  
Vol 771 ◽  
Author(s):  
M. Kemerink ◽  
S.F. Alvarado ◽  
P.M. Koenraad ◽  
R.A.J. Janssen ◽  
H.W.M. Salemink ◽  
...  

AbstractScanning-tunneling spectroscopy experiments have been performed on conjugated polymer films and have been compared to a three-dimensional numerical model for charge injection and transport. It is found that field enhancement near the tip apex leads to significant changes in the injected current, which can amount to more than an order of magnitude, and can even change the polarity of the dominant charge carrier. As a direct consequence, the single-particle band gap and band alignment of the organic material can be directly obtained from tip height-voltage (z-V) curves, provided that the tip has a sufficiently sharp apex.


1995 ◽  
Vol 114 (5-6) ◽  
pp. 470-480 ◽  
Author(s):  
D Van Labeke ◽  
F Baida ◽  
D Barchiesi ◽  
D Courjon

1989 ◽  
Vol 208 (3) ◽  
pp. A14
Author(s):  
C. Mathew Mate ◽  
Ragnar Erlandsson ◽  
GaryM. McClelland ◽  
Shirley Chiang

2013 ◽  
Vol 103 (13) ◽  
pp. 131102 ◽  
Author(s):  
C. Ndiaye ◽  
M. Zerrad ◽  
A. L. Lereu ◽  
R. Roche ◽  
Ph. Dumas ◽  
...  

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