Plasmonic Coaxial Waveguides with Complex Shapes of Cross-Sections

Kozina, O. N.; Nefedov, Igor S.; Melnikov, Leonid A.; Karilainen, Antti

doi:10.3390/ma4010104

Cited by 7 publications

(4 citation statements)

References 25 publications

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“…where z eff o k n k    , with eff n the imaginary part of the effective refractive index of each mode [30]. Our results are shown in Fig.…”

Section: Resultsmentioning

confidence: 73%

Near-field observation of light propagation in nanocoax waveguides

Merlo¹,

Fan²,

Rizal³

et al. 2014

Opt. Express

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We report the observation of propagating modes of visible and near infrared light in nanoscale coaxial (metal-dielectric-metal) structures, using near-field scanning optical microscopy. Together with numerical calculations, we show that the propagated modes have different nature depending on the excitation wavelength, i.e., plasmonic TE11 and TE21 modes in the near infrared and photonic TE31, TE41 and TM11 modes in the visible. Far field transmission out of the nanocoaxes is dominated by the superposition of Fabry-Perot cavity modes resonating in the structures, consistent with theory. Such coaxial optical waveguides may be useful for future nanoscale photonic systems.

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“…where z eff o k n k    , with eff n the imaginary part of the effective refractive index of each mode [30]. Our results are shown in Fig.…”

Section: Resultsmentioning

confidence: 73%

Near-field observation of light propagation in nanocoax waveguides

Merlo¹,

Fan²,

Rizal³

et al. 2014

Opt. Express

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“…81 It was found that the waveguides with elliptical cross section inner electrodes produced faster group velocity than those with circular cross sections, when a dipole-like field is propagated. On the other hand, the TEM mode did not change notably with a change in shape of the inner electrode cross section.…”

Section: ) Applicationsmentioning

confidence: 99%

“…Kozina, et al investigated theoretically the propagation of electromagnetic elds in coaxial waveguides with different geometries of the inner core, those being circular and elliptical cross sections. 81 It was found that the waveguides with elliptical cross section inner electrodes produced faster group velocity than those with circular cross sections, when a dipole-like eld is propagated. On the other hand, the TEM mode did not change notably with a change in shape of the inner electrode cross section.…”

Section: (1) Introductionmentioning

confidence: 99%

Nanocoaxes for optical and electronic devices

Rizal

Merlo

Burns

et al. 2015

Analyst

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The evolution of micro/nanoelectronics technology, including the shrinking of devices and integrated circuit components, has included the miniaturization of linear and coaxial structures to micro/nanoscale dimensions. This reduction in the size of coaxial structures may offer advantages to existing technologies and benefit the exploration and development of new technologies. The reduction in the size of coaxial structures has been realized with various permutations between metals, semiconductors and dielectrics for the core, shield, and annulus. This review will focus on fabrication schemes of arrays of metal – nonmetal – metal nanocoax structures using non-template and template methods, followed by possible applications. The performance and scientific advantages associated with nanocoax-based optical devices including waveguides, negative refractive index materials, light emitting diodes, and photovoltaics are presented. In addition, benefits and challenges that accrue from the application of novel nanocoax structures in energy storage, electronic and sensing devices are summarized.

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“…Plasmonics is the discipline describing the bridging between electromagnetic radiation and electronic oscillations. Recently, the research activity related to plasmonics has undergone a strong acceleration owing to the important role that it can play in different and important fields, such as nanomedicine [ 1 , 2 , 3 , 4 , 5 ], biosensing [ 6 , 7 , 8 , 9 , 10 , 11 , 12 ] nanophotonics [ 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 ], photovoltaic applications [ 29 , 30 , 31 , 32 ] or catalysis [ 33 , 34 , 35 , 36 ].…”

Section: Introductionmentioning

confidence: 99%

Molding of Plasmonic Resonances in Metallic Nanostructures: Dependence of the Non-Linear Electric Permittivity on System Size and Temperature

et al. 2013

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In this paper, we review the principal theoretical models through which the dielectric function of metals can be described. Starting from the Drude assumptions for intraband transitions, we show how this model can be improved by including interband absorption and temperature effect in the damping coefficients. Electronic scattering processes are described and included in the dielectric function, showing their role in determining plasmon lifetime at resonance. Relationships among permittivity, electric conductivity and refractive index are examined. Finally, a temperature dependent permittivity model is presented and is employed to predict temperature and non-linear field intensity dependence on commonly used plasmonic geometries, such as nanospheres.

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Plasmonic Coaxial Waveguides with Complex Shapes of Cross-Sections

Cited by 7 publications

References 25 publications

Near-field observation of light propagation in nanocoax waveguides

Near-field observation of light propagation in nanocoax waveguides

Nanocoaxes for optical and electronic devices

Molding of Plasmonic Resonances in Metallic Nanostructures: Dependence of the Non-Linear Electric Permittivity on System Size and Temperature

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