Further Properties of Lamellar Grating Resonance Anomalies

Andrewartha, J.R.; Fox, J.R.; Wilson, I.J.

doi:10.1080/713819954

Cited by 34 publications

(20 citation statements)

References 6 publications

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“…There have been many studies of geometries composed of a periodic array of slits [19][20][21][22][23][24] or grooves. 11,12,[25][26][27][28][29][30][31][32] There is also a substantial body of work concerning the enhanced transmission properties of arrays of holes [33][34][35][36][37][38][39][40][41][42] ͑also Ref. 43 and references therein͒.…”

Section: Introductionmentioning

confidence: 99%

Babinet’s principle and the band structure of surface waves on patterned metal arrays

Edmunds

Taylor

Hibbins

et al. 2010

Journal of Applied Physics

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The microwave response of an array of square metal patches and its complementary structure, an array of square holes, has been experimentally studied. The resonant phenomena, which yield either enhanced transmission or reflection, are attributed to the excitation of diffractively coupled surface waves. The band structure of these surface modes has been quantified for both p-͑transverse magnetic͒ and s-͑transverse electric͒ polarized radiation and is found to be dependent on the periodicity of the electric and magnetic fields on resonance. The results are in excellent accord with predictions from finite element method modeling and the electromagnetic form of Babinet's principle ͓Babinet, C. R. Acad. Sci. 4, 638 ͑1837͔͒.

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Section: Introductionmentioning

confidence: 99%

Babinet’s principle and the band structure of surface waves on patterned metal arrays

Edmunds

Taylor

Hibbins

et al. 2010

Journal of Applied Physics

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“…Structures studied include arrays of slits, grooves, and holes formed in metals [2][3][4][5] and they have been shown to demonstrate remarkable properties such as superdirectivity (beaming) [6 -8], enhanced light extraction [9], microscopy [10], angle-independent absorption [11], and ''designer'' electromagnetic surfaces [12]. Most authors have concluded that many of these phenomena should be attributed to the excitation of surface waves (surface plasmon polaritons, SPPs, at visible frequencies) on the metal [13,14].…”

mentioning

confidence: 99%

Microwave Transmission of a Compound Metal Grating

et al. 2006

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An array of subwavelength slits in a metallic substrate supports a series of Fabry-Perot-like resonances, where each harmonic results in a transmission peak. Addition of extra slits per period yields a compound grating with a structure factor associated with the basis. In this study each repeat period is comprised of a central slit flanked by a pair of narrower slits. It supports three resonances for every Fabry-Perot-like solution. New and useful insight into this phenomenon is gained by describing each of the modes in terms of the band structure of diffractively coupled surface waves.

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“…For the one-dimensional (1D) case of periodic slits in metal films, three mechanisms were identified: (1) SPP (2) waveguide modes, and (3) optical cavities in slits [17,41,42]. Andrewartha et al [43] studied gratings in perfect conductors and revealed that modes exist inside the grooves. Such modes cause a strong redistribution of energy into the different diffracted orders, which depend on the groove width, groove depth, and wavelength.…”

Section: Resonance Modes and Tuningmentioning

confidence: 98%

Plasmonic Nanostructure Arrays Coupled with a Quantum Emitter

Rivera¹,

Silva²,

Ledemi

et al. 2014

SpringerBriefs in Physics

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In the previous chapter, we saw that a metal nanoparticle (NP) can generate localized surface plasmon resonance (LSPR), as a result of the resonance of free electrons on a curved surface. We also mentioned the main difference between surface plasmon polaritons (SPP) and LSPR, namely that SPPs are propagating waves, while LSPR is a nonpropagating excitation of free electrons in a metallic nanostructure coupled to an EM field. In this chapter, we will see that SPPs in restricted geometries (such as nanoantennas or nanocavities) can also generate LSPR. Nevertheless, the conditions for excitation are different. LSPR can be excited by direct application of light, whereas SPPs can be excited by matching the frequency and momentum of the excitation light and the SPPs. For example, under laser illumination, an antenna develops a strong dipole along the antenna. Charge oscillations inside each arm give rise to strong EM fields inside the feedgap of the antenna. When the antenna is resonant at optical frequencies, it can be called a resonant nanoantenna. In this case, with sufficiently close spacing with respect to a quantum emitter (QE) and nanoantenna, they can interact forming an electric dipole.On the other hand, the extremely high localized fields in plasmonic nanocavities or plasmonic resonators, although they generally have low quality factors Q, are able to confine modes to sub-wavelength volumes V. Thus, plasmonic nanocavities become much more competitive with conventional optical resonators for applications where a resonance confined to a small volume is desirable. Hence, a nanocavity can profoundly change the number of EM modes and decay pathways available to a QE, increasing or decreasing its radiative decay rate. In both cases (nanoantenna and nanocavity), we can manipulate the local density of optical states (LDOS) of the QE, and increase the efficiency of light emission from the QEs.

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Further Properties of Lamellar Grating Resonance Anomalies

Cited by 34 publications

References 6 publications

Babinet’s principle and the band structure of surface waves on patterned metal arrays

Babinet’s principle and the band structure of surface waves on patterned metal arrays

Microwave Transmission of a Compound Metal Grating

Plasmonic Nanostructure Arrays Coupled with a Quantum Emitter

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