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DVOŘÁK, P. NEUMAN, T. BŘÍNEK, L. ŠAMOŘIL, T. KALOUSEK, R. DUB, P. VARGA, P. ŠIKOLA, T.
Original Title
Control and Near-Field Detection of Surface Plasmon Interference Patterns
Type
journal article - other
Language
English
Original Abstract
The tailoring of electromagnetic near-field properties is the central task in the field of nanophotonics. In addition to 2D optics for optical nanocircuits, confined and enhanced electric fields are utilized in detection and sensing, photovoltaics, spatially localized spectroscopy (nanoimaging), as well as in nanolithography and nanomanipulation. For practical purposes, it is necessary to develop easy-to-use methods for controlling the electromagnetic near-field distribution. By imaging optical near-fields using a scanning near-field optical microscope, we demonstrate that surface plasmon polaritons propagating from slits along the metal dielectric interface form tunable interference patterns. We present a simple way how to control the resulting interference patterns both by variation of the angle between two slits and, for a fixed slit geometry, by a proper combination of laser beam polarization and inhomogeneous far-field illumination of the structure. Thus the modulation period of interference patterns has become adjustable and new variable patterns consisting of stripelike and dotlike motifs have been achieved, respectively.
Keywords
SNOM; near-field detection; plasmon interference; surface plasmon polaritons; near-field optics
Authors
DVOŘÁK, P.; NEUMAN, T.; BŘÍNEK, L.; ŠAMOŘIL, T.; KALOUSEK, R.; DUB, P.; VARGA, P.; ŠIKOLA, T.
RIV year
2013
Released
1. 6. 2013
ISBN
1530-6984
Periodical
NANO LETTERS
Year of study
13
Number
6
State
United States of America
Pages from
2558
Pages to
2563
Pages count
BibTex
@article{BUT99712, author="Petr {Viewegh} and Tomáš {Neuman} and Lukáš {Břínek} and Tomáš {Šamořil} and Radek {Kalousek} and Petr {Dub} and Peter {Varga} and Tomáš {Šikola}", title="Control and Near-Field Detection of Surface Plasmon Interference Patterns", journal="NANO LETTERS", year="2013", volume="13", number="6", pages="2558--2563", issn="1530-6984" }