Analysis of transmission through small apertures in conducting films

Webb, Kevin J.; Li, J.

doi:10.1103/physrevb.73.033401

Cited by 54 publications

(20 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…According to Bethe’s aperture theory, the transmission through a single aperture fairly decreases, incident electromagnetic waves cannot transmit through the plate[13–15]. However, by placing resonant-type metamaterial in the vicinity of the aperture or filling the aperture with high-permittivity material, the enhanced transmission through a subwavelength aperture can be achieved at a certain frequency, which opens a new way to design filters[16, 17]. Here, we report a microwave bandpass filter structure based on Mie-resonance extraordinary transmission.…”

Section: Introductionmentioning

confidence: 99%

Microwave Bandpass Filter Based on Mie-Resonance Extraordinary Transmission

et al. 2016

View full text Add to dashboard Cite

Microwave bandpass filter structure has been designed and fabricated by filling the periodically metallic apertures with dielectric particles. The microwave cannot transmit through the metallic subwavelength apertures. By filling the metallic apertures with dielectric particles, a transmission passband with insertion loss 2 dB appears at the frequency of 10–12 GHz. Both simulated and experimental results show that the passband is induced by the Mie resonance of the dielectric particles. In addition, the passband frequency can be tuned by the size and the permittivity of the dielectric particles. This approach is suitable to fabricate the microwave bandpass filters.

show abstract

Section: Introductionmentioning

confidence: 99%

Microwave Bandpass Filter Based on Mie-Resonance Extraordinary Transmission

et al. 2016

View full text Add to dashboard Cite

show abstract

“…These assumptions are sufficient to describe the transmission behavior of EM waves at microwave and radio frequency through a SSA generally in a very thin copper plate. However, both theory [3][4][5][6][7][8][9] and experiment [10][11][12][13] have verified that Bethe theory is no longer valid in optics and thus at frequencies much higher than the collision one of the metal plate [1]. For instance, developing an analytical model that proves that SSAs behave as magnetic dipoles, Ref.…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of Enhanced Transmission Through a Single Subwavelength Aperture Based on Mie Resonance Single Particle

Kang¹,

Sadaune²,

Lippens³

2011

PIER

View full text Add to dashboard Cite

Abstract-We numerically demonstrate that the transmission through a deep subwavelength (λ 0 /20) aperture in a metal plate could be greatly enhanced owing to the resonance effects of a high permittivity (κ) dielectric cube tightly coupled to the aperture. The transmission enhancement originates from the confinement and reradiation of the electromagnetic energy impinging onto the high κ cube which operates in the 1st Mie resonance mode, and behaves as an ultra-small magnetic dipole antenna. The complex permittivity of the cube governs the operating frequency and the enhancement in terms of bandwidth and transmissivity maximum. Additionally, based on the isotropic response of the high κ cube with dimensions comparable to the aperture size, the almost independence of the enhancement properties on the illumination polarization and incidence angle was assessed.

show abstract

“…Much attention has been devoted to the underlying physics of the phenomenon [6] . These explanations include: the resonant excitation of SP on the metal surface [7,8] , which is most widely held; the appearance of localized waveguide resonances [9] ; the dependence of resonances on the hole of geometric shape (shape resonance); and the interference of diffracted evanescent waves generated by subwavelength features on the surface [10] . In ref.…”

mentioning

confidence: 99%

Strong optical transmission through the ellipsoid metal-film nanohole arrays

Xie

Zhou

et al. 2009

Sci. China Ser. G-Phys. Mech. Astron.

View full text Add to dashboard Cite

The transmission characteristics of a metallic film with subwavelength ellipsoid nanohole arrays are investigated by using the three-dimensional finite-difference time-domain (3D-FDTD) method. The extraordinary transmission is attributed to the collaboration of localized waveguide resonance and surface plasmon resonance. The influences of the lattice constant and the hole shape on the transmission are studied. By analyzing the picture of electric field and electromagnetic energy distribution, we show the mechanisms of the two different resonances: Localized waveguide resonance mode can be confined inside the ellipsoid holes region, while electric field and electromagnetic energy are localized separately at the two ends of ellipsoid holes for the surface plasma resonance mode.nanohole arrays, transmission characteristic, localized waveguide resonance, plasmon resonanceThe transmission of a metal film perforated with a periodic array of subwavelength holes is extraordinarily large due to the coupling of light with surface plasma. It was reported by the pioneer Ebbesen et al. [1] in 1998. The surface plasma (SP) are treated as coupled waves, propagating along both film surfaces [2] . Subsequently, the study of the transmission properties of subwavelength apertures has become a very active area of research in electromagnetism, which stimulates the development of many new analytical and numerical approaches. Great interest of the unusual transmission effect generated in the scientific community [3,4] is partly due to its wide range of potential applications [5] . Much attention has been devoted to the underlying physics of the phenomenon [6] . These explanations include: the resonant excitation of SP on the metal surface [7,8] , which is most widely held; the appearance of localized waveguide resonances [9] ; the dependence of resonances on the hole of geometric shape (shape resonance); and the interference of diffracted evanescent waves generated by subwavelength features on the surface [10] . In ref. [11], it was shown that the magneto-optical properties, as well as plasma frequencies of the periodic metal-dielectric composite, depend upon the microstructure and can therefore be controlled by both the magnitude and the direction of the applied dc magnetic field. Recently, hole shape is taken into account, besides the isotropic shapes (such as the circular and square shapes) [12,13] , the nonisotropic shape of inclusions and their dramatic influences on the optical properties have gained particular attention [14][15][16][17][18][19][20] . Works for metal arrays with nonisotropic hole shapes studied previously are mostly ones with equal cross sections in the plane parallel to the metal surface. However, structures with nanoholes of different cross sections have not been studied in detail.In this paper, using the three-dimensional finite-difference time-domain (3D-FDTD) method, we study the optical properties of a gold film perforated with ellipsoid nanoholes described in Figure 1. Two different resonances as follows a...

show abstract

Analysis of transmission through small apertures in conducting films

Cited by 54 publications

References 20 publications

Microwave Bandpass Filter Based on Mie-Resonance Extraordinary Transmission

Microwave Bandpass Filter Based on Mie-Resonance Extraordinary Transmission

Numerical Analysis of Enhanced Transmission Through a Single Subwavelength Aperture Based on Mie Resonance Single Particle

Strong optical transmission through the ellipsoid metal-film nanohole arrays

Contact Info

Product

Resources

About