Role of multipole moment of the probe in apertureless near-field optical microscopy

The model of apertureless near-field optical microscope is developed taking into account the multipole moment of probe. In the case of samples with small dielectric absorption, the multipole moments are shown to be responsible for the appearance of additional resonances in the spectrum of scattered...

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Bibliographic Details
Published inUltramicroscopy Vol. 101; no. 2-4; pp. 111 - 122
Main Author Sukhov, S.V.
Format Journal Article
LanguageEnglish
Published Netherlands Elsevier B.V 01.11.2004
Subjects
Algorithms
Boundary-value problems
Microscopy, Scanning Probe - instrumentation
Microscopy, Scanning Probe - methods
Multipole systems
Near-field scanning optical microscopes
Scattering
Spectrum Analysis, Raman - instrumentation
Spectrum Analysis, Raman - methods
42.25.Fx
Multipole systems
Scattering
Boundary-value problems
68.37.Uv
78.68.+m
Near-field scanning optical microscopes
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Summary:The model of apertureless near-field optical microscope is developed taking into account the multipole moment of probe. In the case of samples with small dielectric absorption, the multipole moments are shown to be responsible for the appearance of additional resonances in the spectrum of scattered signal. The influence of multipole moments is especially pronounced in the near-field microscopy with modulation of tip–sample distance. A good agreement of the theoretical results with experimental data in the case of resonant interaction of the probe and sample is demonstrated.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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content type line 23
ISSN:0304-3991
1879-2723
DOI:10.1016/j.ultramic.2004.05.008