scholarly journals A New Perspective on Plasmonics: Confinement and Propagation Length of Surface Plasmons for Different Materials and Geometries

2015 ◽  
Vol 4 (1) ◽  
pp. 177-184 ◽  
Author(s):  
Babak Dastmalchi ◽  
Philippe Tassin ◽  
Thomas Koschny ◽  
Costas M. Soukoulis
Keyword(s):  
Surface Plasmons ◽  
Propagation Length ◽  
New Perspective

Propagation length of surface plasmons in a metal film with roughness

2009 ◽  
Vol 48 (30) ◽  
pp. 5683 ◽  
Author(s):  
Andrei Kolomenski ◽  
Alexandre Kolomenskii ◽  
John Noel ◽  
Siying Peng ◽  
Hans Schuessler
Keyword(s):  
Surface Plasmons ◽  
Metal Film ◽  
Propagation Length

scholarly journals High-Performance Transmission of Surface Plasmons in Graphene-Covered Nanowire Pairs with Substrate

Nanomaterials ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 1594 ◽  
Author(s):  
Da Teng ◽  
Kai Wang ◽  
Qiongsha Huan ◽  
Yongzhe Zhao ◽  
Yanan Tang
Keyword(s):  
Surface Plasmons ◽  
High Performance ◽  
Infrared Range ◽  
Support Surface ◽  
Propagation Length ◽  
Promising Alternative ◽  
Silica Substrate ◽  
Nanophotonic Devices ◽  
Substrate Layer ◽  
Potential Applications

Graphene was recently proposed as a promising alternative to support surface plasmons with superior performances in the mid-infrared range. Here, we theoretically show that high-performance and low-loss transmission of graphene plasmons can be achieved by adding a silica substrate to the graphene-covered nanowire pairs. The effect of the substrate layer on mode properties has been intensively investigated by using the finite element method. Furthermore, the results show that inserting a low index material layer between the nanowire and substrate could compensate for the loss accompanied by the substrate, thus the mode properties could be adjusted to fulfill better performance. A reasonable propagation length of 15 μm and an ultra-small normalized mode area about ~10−4 could be obtained at 30 THz. The introduction of the substrate layer is crucial for practical fabrication, which provides additional freedom to tune the mode properties. The graphene-covered nanowire pairs with an extra substrate may inspire potential applications in tunable integrated nanophotonic devices.

Determination of the propagation length of surface plasmons with the scanning tunneling microscope

1993 ◽  
Vol 103 (3-4) ◽  
pp. 194-200 ◽  
Author(s):  
J.-P. Thost ◽  
W. Krieger ◽  
N. Kroo ◽  
Z. Szentirmay ◽  
H. Walther
Keyword(s):  
Surface Plasmons ◽  
Scanning Tunneling Microscope ◽  
Scanning Tunneling ◽  
Propagation Length ◽  
Tunneling Microscope

scholarly journals Frequency Dependent Graphene Surface Plasmon Properties on Different Dielectrics

2019 ◽  
Vol 8 (3) ◽  
pp. 6447-6449
Keyword(s):  
Surface Plasmons ◽  
Surface Plasmon ◽  
Chemical Potential ◽  
Dielectric Medium ◽  
Free Standing ◽  
Propagation Length ◽  
Graphene Surface ◽  
Graphene Plasmonics ◽  
Wafer Substrate ◽  
Field Localization

Numerical analysis of surface plasmon behaviour is performed on graphene surface supported on different dielectric medium and with varying graphene chemical potential. The dielectric medium of graphene is varied from free standing graphene to rigid SiO2 wafer substrate to flexible PMMA polymer for diverse graphene plasmonics applications. The dispersion relation, propagation length and penetration depth of graphene surface plasmons are computed and analysed for the different dielectrics. The results show that graphene plasmonic behaviour in the various dielectrics highly depends on its chemical potential, the excitation input frequencies and produces surface plasmons with high field localization and low losses. This study of plasmonic behaviour on flexible dielectric opens up application of graphene plasmonics in the field of flexible optoelectronics.

LONG-RANGE SURFACE PLASMONS ON HIGHLY ANISOTROPIC DIELECTRIC SUBSTRATES

2010 ◽  
Vol 19 (04) ◽  
pp. 613-619
Author(s):  
L. GUMEN ◽  
NAGARAJ ◽  
A. NEOGI ◽  
A. KROKHIN
Keyword(s):  
Surface Plasmons ◽  
Long Range ◽  
Optical Axis ◽  
Propagation Length ◽  
Anisotropic Dielectric ◽  
Dielectric Substrates ◽  
Plasmonic Crystal ◽  
Anisotropic Substrates ◽  
Dielectric Structures

We calculate the propagation length of surface plasmons in metal-dielectric structures with anisotropic substrates. We show that the Joule losses can be minimized by appropriate orientation of the optical axis of a birefringent substrate and that the favorable orientation of the axis depends on ω. A simple Kronig-Penney model for anisotropic plasmonic crystal is also proposed.

SREM observation of the interaction between the in-situ deposited Pd small particles and MgO cleavage surface

1986 ◽  
Vol 44 ◽  
pp. 382-383
Author(s):  
H.-J. Ou
Keyword(s):  
Electron Microscopy ◽  
Small Particle ◽  
Small Particles ◽  
Cleavage Surface ◽  
Metallic Particles ◽  
Microscopy Technique ◽  
Ceramic Surfaces ◽  
Reflection Electron Microscopy ◽  
New Perspective

The understanding of the interactions between the small metallic particles and ceramic surfaces has been studied by many catalyst scientists. We had developed Scanning Reflection Electron Microscopy technique to study surface structure of MgO hulk cleaved surface and the interaction with the small particle of metals. Resolutions of 10Å has shown the periodic array of surface atomic steps on MgO. The SREM observation of the interaction between the metallic particles and the surface may provide a new perspective on such processes.

Articulation Training: A New Perspective

1979 ◽  
Vol 10 (3) ◽  
pp. 145-151 ◽  
Author(s):  
Sallie W. Hillard ◽  
Laura P. Goepfert
Keyword(s):  
Life Experience ◽  
Remediation Measures ◽  
New Perspective

This paper describes the concept of teaching articulation through words which have inherent meaning to a child’s life experience, such as a semantically potent word approach. The approach was used with six children. Comparison of pre/post remediation measures indicated that it has promise as a technique for facilitating increased correct phoneme production.

Sign in / Sign up

Export Citation Format

Share Document