Magnetic field integral equation analysis of interaction between a surface plasmon polariton and a circular dielectric cavity embedded in the metal

Chremmos, I

dc.contributor.author	Chremmos, I	en
dc.date.accessioned	2014-03-01T01:31:00Z
dc.date.available	2014-03-01T01:31:00Z
dc.date.issued	2009	en
dc.identifier.issn	1084-7529	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/19716
dc.subject	Surface Plasmon Polariton	en
dc.subject	Magnetic Field Integral Equation	en
dc.subject.classification	Optics	en
dc.subject.other	Band-stop	en
dc.subject.other	Cavity mode	en
dc.subject.other	Complex analysis	en
dc.subject.other	Cylindrical wave	en
dc.subject.other	Dielectric cavities	en
dc.subject.other	Domain methods	en
dc.subject.other	Half-space	en
dc.subject.other	Harmonic basis function	en
dc.subject.other	Inverse Fourier transforms	en
dc.subject.other	Line integrals	en
dc.subject.other	Magnetic field integral equations	en
dc.subject.other	Mathematical formulation	en
dc.subject.other	matrix	en
dc.subject.other	Numerical results	en
dc.subject.other	Radiated Field	en
dc.subject.other	Radiating elements	en
dc.subject.other	Reflective filters	en
dc.subject.other	Surface plasmon polaritons	en
dc.subject.other	Transverse magnetic	en
dc.subject.other	Two layers	en
dc.subject.other	Wavelength Selectivity	en
dc.subject.other	Whispering gallery resonators	en
dc.subject.other	Complexation	en
dc.subject.other	Green's function	en
dc.subject.other	Harmonic functions	en
dc.subject.other	Integral equations	en
dc.subject.other	Magnetic fields	en
dc.subject.other	Metal analysis	en
dc.subject.other	Molecular physics	en
dc.subject.other	Numerical analysis	en
dc.subject.other	Phonons	en
dc.subject.other	Photonics	en
dc.subject.other	Photons	en
dc.subject.other	Physical optics	en
dc.subject.other	Plasmons	en
dc.subject.other	Quantum theory	en
dc.subject.other	Refractive index	en
dc.subject.other	Surface plasmon resonance	en
dc.subject.other	Transfer matrix method	en
dc.subject.other	Method of moments	en
dc.title	Magnetic field integral equation analysis of interaction between a surface plasmon polariton and a circular dielectric cavity embedded in the metal	en
heal.type	journalArticle	en
heal.identifier.primary	10.1364/JOSAA.26.002623	en
heal.identifier.secondary	http://dx.doi.org/10.1364/JOSAA.26.002623	en
heal.language	English	en
heal.publicationDate	2009	en
heal.abstract	A rigorous integral equation (IE) analysis of the interaction between a surface plasmon polariton (SPP) and a circular dielectric cavity embedded in a metal half-space is presented. The device is addressed as the plasmonic counterpart of the established integrated optics filter comprising a whispering gallery (WG) resonator coupled to a waveguide. The mathematical formulation is that of a transverse magnetic scattering problem. Using a magnetic-type Green's function of the two-layer medium with boundary conditions that cancel the line integral contributions along the interface, an IE for the magnetic field inside the cavity is obtained. The IE is treated through an entire-domain method of moments (MoM) with cylindrical-harmonic basis functions. The entries of the MoM matrix are determined analytically by utilizing the inverse Fourier transform of Green's function and the Jacobi-Anger formula for interchanging between plane and cylindrical waves. Complex analysis techniques are applied to determine the transmitted, reflected, and radiated field quantities in series forms. The numerical results show that the scattered SPPs' spectra exhibit pronounced wavelength selectivity that is related to the excitation of WG-like cavity modes. It seems feasible to exploit the device as a bandstop or reflective filter or even as an efficient radiating element. In addition, the dependence of transmission on the cavity refractive index endows this structure with a sensing functionality. (C) 2009 Optical Society of America	en
heal.publisher	OPTICAL SOC AMER	en
heal.journalName	Journal of the Optical Society of America A: Optics and Image Science, and Vision	en
dc.identifier.doi	10.1364/JOSAA.26.002623	en
dc.identifier.isi	ISI:000272349500020	en
dc.identifier.volume	26	en
dc.identifier.issue	12	en
dc.identifier.spage	2623	en
dc.identifier.epage	2633	en