scholarly journals Surface plasmon-polaritons in deformed graphene excited by attenuated total internal reflection

2019 ◽  
Vol 5 (1) ◽  
pp. 7-11
Author(s):  
Maksim O. Usik ◽  
Igor V. Bychkov ◽  
Vladimir G. Shavrov ◽  
Dmitry A. Kuzmin
Keyword(s):  
Surface Plasmon ◽  
Surface Plasmon Polaritons ◽  
Total Internal Reflection ◽  
Incident Angle ◽  
Incident Light ◽  
Attenuated Total Reflection ◽  
Reflection Method ◽  
Molding Flow ◽  
Plasmon Polaritons ◽  
Effective Excitation

Abstract In the present work we theoretically investigated the excitation of surface plasmon-polaritons (SPPs) in deformed graphene by attenuated total reflection method. We considered the Otto geometry for SPPs excitation in graphene. Efficiency of SPPs excitation strongly depends on the SPPs propagation direction. The frequency and the incident angle of the most effective excitation of SPPs strongly depend on the polarization of the incident light. Our results may open up the new possibilities for strain-induced molding flow of light at nanoscales.

scholarly journals Enhancement of the Surface Plasmon Polaritons Excitation Efficiency

2019 ◽  
Vol 54 (5) ◽  
Author(s):  
Riyadh D. Mansoor ◽  
Alistair Duffy
Keyword(s):  
Surface Plasmon ◽  
Surface Plasmon Polaritons ◽  
Incident Angle ◽  
Thin Metal Film ◽  
Excitation Efficiency ◽  
Sensing Applications ◽  
Metal Thickness ◽  
Collective Oscillations ◽  
The Relationship ◽  
Plasmon Polaritons

Surface Plasmon Polaritons (SPPs) are propagating excitations that arise from the coupling of light with collective oscillations of electrons on the metal surface. This paper describes a new approach for increasing the SPP excitation efficiency. Using a computational electromagnetics approach, potential techniques for reducing incident power reflectivity were investigated using the Kretschmann configuration. The effects of different parameters such as incident angle, metal thickness, and dielectric permittivity were tested and optimized to improve the efficiency of SPPs by minimizing reflectivity. An 30% increase in efficiency was obtained. In addition, the optical response of a thin metal film on a glass substrate was numerically examined in terms of SPP excitation. The dependency of the response on the incident angle, materials, and dimensions were demonstrated. This paper describes how an improvement in efficiency can improve the effectiveness of bio-sensing applications through the proper choice of layer dimensions and material permittivity of different layers. The relationship between incident angle and reflectivity for different permittivities can be used for bio-sensing applications such as blood glucose biosensors, etc.

scholarly journals Analytical Calculations of Scattering Amplitude of Surface Plasmon Polaritons Excited by A Spherical Nanoantenna

Nanomaterials ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 2937
Author(s):  
Anton V. Dyshlyuk ◽  
Alexey Proskurin ◽  
Andrey A. Bogdanov ◽  
Oleg B. Vitrik
Keyword(s):  
Plane Wave ◽  
Surface Plasmon ◽  
Surface Plasmon Polaritons ◽  
Scattering Amplitude ◽  
Incident Light ◽  
High Refractive Index ◽  
Incident Plane Wave ◽  
Full Wave ◽  
Incident Plane ◽  
Plasmon Polaritons

Since surface plasmon polaritons (SPPs) are surface waves, they cannot be excited by an incident plane wave, because free-space photons do not possess a sufficient in-plane momentum. Phase matching between the incident light and SPP can be achieved using a high-refractive-index prism, grating, or nanoantennas. In this work, we found an expression for the amplitude of SPP excited by an arbitrary 3D current distribution placed near a metal interface. The developed method is based on the well-known technique used in waveguide theory that enables finding the amplitudes of waveguide modes excited by the external currents. It reduces the SPP excitation problem to the summation of the set of emitters. As a particular example, we considered a spherical dipole nanoantenna on a metal substrate illuminated by a normally incident plane wave. The analytical calculations were in good agreement with the full-wave numerical simulations.

All-optical and dynamic manipulation of surface plasmon polaritons by tailoring the polarization state of incident light

2018 ◽  
Vol 16 (2) ◽  
pp. 026001
Author(s):  
Zhongsheng Man ◽  
Shuoshuo Zhang ◽  
Zhidong Bai ◽  
Yuquan Zhang ◽  
Xiaolu Ge ◽  
...  
Keyword(s):  
Surface Plasmon ◽  
Surface Plasmon Polaritons ◽  
Incident Light ◽  
Polarization State ◽  
All Optical ◽  
Plasmon Polaritons ◽  
Dynamic Manipulation

scholarly journals Manipulation of surface plasmon polaritons by phase modulation of incident light

2010 ◽  
Vol 19 (1) ◽  
pp. 224 ◽  
Author(s):  
G. H. Yuan ◽  
X.-C. Yuan ◽  
J. Bu ◽  
P. S. Tan ◽  
Q. Wang
Keyword(s):  
Surface Plasmon ◽  
Surface Plasmon Polaritons ◽  
Phase Modulation ◽  
Incident Light ◽  
Plasmon Polaritons
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