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Optical characterization of plasmoni...

Denkova, Denitza.

Optical characterization of plasmonic nanostructuresnear-field imaging of the magnetic field of light /

Record Type:	Electronic resources : Monograph/item
Title/Author:	Optical characterization of plasmonic nanostructuresby Denitza Denkova.
Reminder of title:	near-field imaging of the magnetic field of light /
Author:	Denkova, Denitza.
Published:	Cham :Springer International Publishing :2016.
Description:	xxvi, 88 p. :ill., digital ;24 cm.
Contained By:	Springer eBooks
Subject:	Nanophotonics.
Online resource:	http://dx.doi.org/10.1007/978-3-319-28793-5
ISBN:	9783319287935$q(electronic bk.)

Optical characterization of plasmonic nanostructuresnear-field imaging of the magnetic field of light /
Denkova, Denitza.

Optical characterization of plasmonic nanostructuresnear-field imaging of the magnetic field of light /[electronic resource] :by Denitza Denkova. - Cham :Springer International Publishing :2016. - xxvi, 88 p. :ill., digital ;24 cm. - Springer theses,2190-5053. - Springer theses..

Introduction -- Imaging the Magnetic Near-ﬁeld of Plasmon Modes in Bar Antennas -- A Near-Field-Aperture Probe as an Optical Magnetic Source and Detector -- Magnetic Near-Field Imaging of Increasingly Complex Plasmonic Antennas -- Plasmon-Enhanced Sub-wavelength Laser Ablation: Plasmonic Nano-Jets -- Conclusions and Outlook.

This thesis focuses on a means of obtaining, for the first time, full electromagnetic imaging of photonic nanostructures. The author also develops a unique practical simulation framework which is used to confirm the results. The development of innovative photonic devices and metamaterials with tailor-made functionalities depends critically on our capability to characterize them and understand the underlying light-matter interactions. Thus, imaging all components of the electromagnetic light field at nanoscale resolution is of paramount importance in this area. This challenge is answered by demonstrating experimentally that a hollow-pyramid aperture probe SNOM can directly image the horizontal magnetic field of light in simple plasmonic antennas - rod, disk and ring. These results are confirmed by numerical simulations, showing that the probe can be approximated, to first order, by a magnetic point-dipole source. This approximation substantially reduces the simulation time and complexity and facilitates the otherwise controversial interpretation of near-field images. The validated technique is used to study complex plasmonic antennas and to explore new opportunities for their engineering and characterization.

ISBN: 9783319287935$q(electronic bk.)

Standard No.: 10.1007/978-3-319-28793-5doiSubjects--Topical Terms:

484751
Nanophotonics.

LC Class. No.: TA1530

Dewey Class. No.: 621.365

Optical characterization of plasmonic nanostructuresnear-field imaging of the magnetic field of light /
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520 $a This thesis focuses on a means of obtaining, for the first time, full electromagnetic imaging of photonic nanostructures. The author also develops a unique practical simulation framework which is used to confirm the results. The development of innovative photonic devices and metamaterials with tailor-made functionalities depends critically on our capability to characterize them and understand the underlying light-matter interactions. Thus, imaging all components of the electromagnetic light field at nanoscale resolution is of paramount importance in this area. This challenge is answered by demonstrating experimentally that a hollow-pyramid aperture probe SNOM can directly image the horizontal magnetic field of light in simple plasmonic antennas - rod, disk and ring. These results are confirmed by numerical simulations, showing that the probe can be approximated, to first order, by a magnetic point-dipole source. This approximation substantially reduces the simulation time and complexity and facilitates the otherwise controversial interpretation of near-field images. The validated technique is used to study complex plasmonic antennas and to explore new opportunities for their engineering and characterization.
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