2 edition of Electromagnetic linear surface guided modes and plasmon couplers. found in the catalog.
Electromagnetic linear surface guided modes and plasmon couplers.
Khalid Ibrahim G. Al-Jibouri
PhD thesis, Physics.
as surface plasmon and wave guided modes, provide decay channels for the electric dipole placed close to the waveguide. We calculated the contribution to the decay rate of symmetric and antisymmetric eigenmodes as a function of frequency and the orientation of the emitter. Our results show that the modiﬁcation of the spontaneous. sus wave vector k! of guided modes in plasmon waveguides consisting of an inﬁnite linear array of point dipoles spaced a distance d!l apart, the calculation of which is outlined in Ref. The solid lines show the dispersion relation assum-ing nearest-neighbor coupling only, and the dotted lines take.
Audio Books & Poetry Community Audio Computers, Technology and Science Music, Arts & Culture News & Public Affairs Non-English Audio Spirituality & Religion. Librivox Free Audiobook. Pretty Funny Girl Podcast YouTube Power Hour Podcast: Full text of "Electromagnetic Surface Modes". Surface plasmon photonics A surface plasmon polariton (SPP) is an electromagnetic wave propagating at the interface between a metal and a dielectric material that is coupled to a charge density oscillation of the free electrons at the surface of the metal [1,2]. Because SPPs are bound to the interface and their electric eld decays expo-File Size: 7MB.
Surface plasmons are light-induced collective electronic excitations in a metal that offer the possibility of manufacturing optoelectronic devices at nanometer scale. Before such shrinking can be achieved, the propagation direction and lifetime of the plasmonic excitations have to be controlled (see the Perspective by [ Miroshnichenko and Kivshar ]). Rodríguez Cited by: where λ n,g is the fitted peak wavelength for a cluster as function of n and g, and λ 0 is the resonance wavelength of the non-interacting individual 40nm gold NPs. The LSPR red-shifts with decreasing g and increasing n, but the change in S(n, g) calculated between n+1 and n decreases with growing n in the investigated size range n=2– convergence in the spectral shift is .
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By using the theory of waveguide junctions and the analysis of surface-plasmon-waves, the concept of surface plasmon couplers is presented theoretically in full detail. The theory is based in calculating every mode that exists in the coupler (guided-leaky-surface bound-surface leaky).Author: Khalid Ibrahim G.
Al-Jibouri. Electromagnetic linear surface guided modes and plasmon couplers. By K.I.G Al-Jibouri. Abstract. SIGLEAvailable from British Library Document Supply Centre- DSC:D / BLDSC - British Library Document Supply CentreGBUnited Kingdo Topics: 20K - Solid-state physics Author: K.I.G Al-Jibouri.
Part of the Springer Series on Chemical Sensors and Biosensors book series (SSSENSORS, volume 4) Excitation of surface plasmons Grating coupler Guided mode Optical waveguide Prism coupler Surface plasmons.
This is a preview of subscription content, log in to check by: We investigate the guided modes of the surface plasmon polaritons in metal waveguide with a nonlinear dielectric substrate and a linear dielectric cladding.
It is shown that the nonlinear fundamental guided mode is always absent for any waveguide : Cuizhi Fan, Qian Kong, Ming Shen. It is shown that it is possible to realize strong coupling between a surface plasmon and a guided mode in a layered structure. The dispersion relation of such a structure is obtained through the S.
In coupled local-mode theory, the electromagnetic ﬁeld on a given transverse section of the tapered ﬁber is written as a linear combination of the guided modes supported by the inﬁnite ﬁber with the same cross section (local modes) . Therefore, we analyze in this section the TM modes supported by a cylindrical metal-coated optical Cited by: couple light to bound electromagnetic waves at a metal− dielectric interface called surface plasmon polaritons (SPPs), which were launched unidirectionally in diﬀerent directions depending on the circular polarization state of the incident light.1,2 These couplers, which we may refer to as “meta.
Surface plasmon polariton. A new guided collective oscillation mode called surface plasmon arises in the presence of a boundary. Surface plasmon is a surface electromagnetic wave that propagates along an interface between a conductor (metal) and an insulator (dielectric).
This guided mode couples to electromagnetic waves resulting in a Author: Marios Mattheakis, Giorgos P. Tsironis, Efthimios Kaxiras. SURFACE PLASMON BASED ENHANCED TRANSMISSION OF ELECTROMAGNETIC WAVES Süheyla Sena Akarca Bıyıklı M. in Physics Supervisor: Prof. Ekmel Özbay July Grating-coupling phenomena between surface plasmons and electromagnetic waves are studied in the microwave spectrum using metallic gratings.
If plasmon surface polariton fields are used to illuminate interfacial structures in light microscopy, high contrast without loss of spatial resolution can be obtained owing to the high sensitivity of the plasmon resonance coupling to (for example) small optical thickness variations of thin dielectric by: The coupling of microwave radiation to surface plasmon polaritons and guided modes via dielectric gratings.
Coupling is only possible to modes in the high- Figure The charges and electromagnetic field of surface plasmons propagating in the x-direction.
The exponential dependence Ey away from the interface is. tics of surface polaritons8 with a ray-optics model for guided waves, we demonstrate that an equivalent di-electric slab waveguide can be used to approximate the solutions of guided polariton modes. By deﬁnition, a guided mode is an eigenstate of the electromagnetic ﬁeld that propagates in a speciﬁed.
Electromagnetic linear surface guided modes and plasmon couplers. Author: Al-Jibouri, Khalid Ibrahim G. ISNI: Awarding Body: University of Salford Current Institution: University of Salford Date of Award: Availability of Full Text.
MODERN INTRODUCTION TO SURFACE PLASMONS Theory, Mathematica Modeling and Applications Introducing graduate students in physics, optics, materials science and electrical engineering to surface plasmons, this book also covers guided modes at planar interfaces of metamaterials with negative refractive index.
SPPs are surface electromagnetic waves on a metal–dielectric interface that can have short wavelengths in the spectral range near the surface plasmon resonance frequency. The chapter presents the recent overviews of the basic properties of SPPs. Nanostructured metals which support surface plasmon modes can concentrate electromagnetic (EM) fields to a small fraction of a wavelength while enhancing local field strengths by several orders of magnitude.
For this reason, plasmonic nanostructures can serve as optical couplers across 1/5(1). We have demonstrated the coupling modes using both localized and propagating surface plasmon-supporting nanostructure surfaces. We demonstrate theoretically that plane wave propagating in free space can be used to excite the whispering gallery mode in dielectric microresonators growCited by: 7.
The coupling of surface plasmon modes is strongest at very small separations (Cited by: This article describes the angle-dependent optical responses of 2D metal–insulator–metal (MIM) nanocavity arrays.
Through a combination of soft nanolithography and template stripping, we fabricated arrays of plasmonic MIM nanostructures with subwavelength spacings over square centimeter areas. We controlled the coupling between the localized surface plasmon and guided modes Cited by: We demonstrate that the coupling between plasmonic modes of oriented metallic nanorods results in the formation of an extended (guided) plasmonic mode of the nanorod array.
The electromagnetic field distribution associated to this mode is found to be concentrated between the nanorods within the assembly and propagates normally to the nanorod long axes, similar to a photonic mode.
propagating electromagnetic modes ω> ω p Æε m→1 Æaltered by intraband transitions in noble metals A combined excitation consisting of a surface plasmon and a photon is called a surface plasmon polariton (SSP). Ædifferent nature, such as phonon–polariton, exciton–polariton, etc. 2 1p m ω εω ω ⎛⎞ =−⎜⎟ ⎝⎠.
In coupled local-mode theory, the electromagnetic field on a given transverse section of the tapered fiber is written as a linear combination of the guided modes supported by the infinite fiber with the same cross section (local modes).
Therefore, we analyze in this section the TM modes supported by a cylindrical metal-coated optical by: We show electromagnetic energy transport with gold nanoparticles that were assembled into close-packed linear chains.
The small interparticle distances enabled strong electromagnetic coupling causing the formation of low-loss subradiant plasmons, which facilitated energy propagation over many by: