The nonlinear propagation constant of a surface plasmon

1981 ◽  
Vol 39 (11) ◽  
pp. 889-891 ◽  
Author(s):  
Dror Sarid
Keyword(s):  
Surface Plasmon ◽  
Propagation Constant ◽  
Nonlinear Propagation

Surface Plasmon Polaritons: Propagation Characteristics of Surface Plasmon Waves on Au and Ag at Optical Wavelengths

2011 ◽  
Vol 110-116 ◽  
pp. 764-768
Author(s):  
Niladri Pratap Maity ◽  
Reshmi Maity
Keyword(s):  
Surface Plasmon ◽  
Surface Plasmon Polaritons ◽  
Noble Metals ◽  
Propagation Constant ◽  
Propagation Characteristics ◽  
Optical Wavelengths ◽  
Matlab Programming ◽  
Plasmon Polaritons ◽  
Strong Confinement ◽  
Surface Plasmon Waves

The existence of Surface Plasmons (SPs) is possible only if the metal have a negative dielectric constant at the corresponding optical frequency. In this paper the propagation characteristics of Surface Plasmon Waves (SPWs) which exists on noble metals like gold (Au) and silver (Ag) due to the formation of Surface Plasmon Polaritons (SPPs), have been evaluated theoretically and simulated with the help of MATLAB programming language. The variation of the propagation constant (PC), the attenuation coefficient (AC) and the penetration depth (PD) inside the metals and the dielectric has been determined. It has been found that highly conducting metals Au and Ag provide a strong confinement to the SPWs at optical frequencies.

Solitary vortices in two-dimensional waveguide matrix

2015 ◽  
Vol 24 (01) ◽  
pp. 1550012 ◽  
Author(s):  
Guihua Chen ◽  
Hongcheng Huang ◽  
Muying Wu
Keyword(s):  
Propagation Constant ◽  
Stability Domain ◽  
Nonlinear Propagation ◽  
Total Power ◽  
Two Dimensional ◽  
Coupling Constant ◽  
Discrete Nonlinear Schrödinger Equation ◽  
Discrete Vortex ◽  
Stable Domain ◽  
The Stability

We consider the nonlinear propagation of an optical beam in a two-dimensional waveguide matrix, which is described by the discrete nonlinear Schrödinger equation with a self-focusing nonlinearity. Our study focuses on the stability domain of the discrete vortex solitons with its topological invariant S equal to 1. Such domain is identified with the propagation constant k and the coupling constant C. Our simulations show that there is a critical value C cr for any fixed value of k. At C ≤ C cr , the stable domain is continuous. However, at C > C cr , the stable domain becomes discontinuous and fuzzy. The distribution of the continuous stable regions is identified and plotted. Moreover, we give the relation of the total power P to C and k, which enable us to figure out the continuous stability area through the (P, C) plane.

Comparison of sensitivity of the refractometric methods of frustrated total internal reflection and surface plasmon resonance

2020 ◽  
pp. 44-49
Author(s):  
I. N. Pavlov
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Total Internal Reflection ◽  
Resonance Method ◽  
Internal Reflection ◽  
Optical Methods ◽  
Thin Boundary Layer ◽  
Experimental Conditions ◽  
Frustrated Total Internal Reflection

Two optical methods, namely surface plasmon resonance imaging and frustrated total internal reflection, are described in the paper in terms of comparing their sensitivity to change of refractive index of a thin boundary layer of an investigated medium. It is shown that, despite the fact that the theoretically calculated sensitivity is higher for the frustrated total internal reflection method, and the fact that usually in practice the surface plasmon resonance method, on the contrary, is considered more sensitive, under the same experimental conditions both methods show a similar result.

Conversion of surface plasmon polaritons into photons: visual observation

2011 ◽  
Vol 181 (3) ◽  
pp. 305 ◽  
Author(s):  
V.B. Zon ◽  
B.A. Zon ◽  
V.G. Klyuev ◽  
A.N. Latyshev ◽  
D.A. Minakov ◽  
...  
Keyword(s):  
Surface Plasmon ◽  
Surface Plasmon Polaritons ◽  
Visual Observation ◽  
Plasmon Polaritons
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