Observation of enhanced transmission for s-polarized light through a subwavelength slit

Guillaumée, Mickaël; Nikitin, Alexey Y.; Klein, Mona Julia Katharina; Dunbar, L. A.; Spassov, Vladislav; Eckert, R; Martín‐Moreno, Luis; García‐Vidal, F. J.; Stanley, R. P.

doi:10.1364/oe.18.009722

Cited by 31 publications

(19 citation statements)

References 18 publications

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“…Since, excitation of TE-polarized dielectric waveguide modes inside the dielectric film strongly increases the TE-polarized transmission [34]. We present series of calculations for TE-polarized light being normally incident on the structure with the following grating parameters: 0 .…”

Section: Resultsmentioning

confidence: 99%

Enhanced optical transmission of the triple-layer resonant waveguide structure

Yaremchuk¹

2016

Semicond. Phys. Quantum Electron. Optoelectron.

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Abstract. In this paper, we propose and demonstrate a novel guided-mode resonant filter based on a metallic grating sandwiched between two dielectric layers for TE polarization. A theoretical model based on rigorous coupled wave analysis has been developed. The transmission spectra of the grating-based structure show a high transmission band with the corresponding amplitude up to 70% inside the infra-red region. Moreover, the observed optical properties can be exactly tuned by the structural parameters. These properties allow using such structures as compact optical filters, and their spectral characteristics can be easily tuned and scaled.

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Section: Resultsmentioning

confidence: 99%

Enhanced optical transmission of the triple-layer resonant waveguide structure

Yaremchuk¹

2016

Semicond. Phys. Quantum Electron. Optoelectron.

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“…Thus no standing wave is possible inside the metallic grating in this regime and no ET can be observed. However, an addition of a thin dielectric layer on top of the grating allows for a standing wave in the system even for λ∕n s > 2a, given that λ∕n 2 < d [22,33]. This is because, under these conditions, while there is no longer a propagating mode inside the grating, the thin dielectric layer (with refractive index n 2 ) can still support one, allowing for a standing wave in the thin dielectric layer.…”

Section: A Et In Te Polarization-with a Thin Dielectric Layermentioning

confidence: 99%

Theory and experiments of Bragg cavity modes in passive and active metallic nanoslit array devices

et al. 2012

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Metallic nanoslit arrays exhibit several unique, surprising, and useful properties, such as resonant enhanced transmission and resonant local field enhancements. Here we present both a theoretical study of these static properties, as well as experiments showing the utilization of these features combined with active optical media. We develop an approximated, simple closed-form model for predicting and explaining the general emergence of enhanced transmission resonances through metallic gratings, in various configurations and polarizations. This model is based on an effective index approximation and it unifies in a simple way the underlying mechanism of all forms of enhanced transmission in such structures as emerging from standing wave resonances of the different diffraction orders of periodic structures. The known excitation of surface plasmon polaritons or slit cavity modes emerges as a limiting case of a more general condition. We also use this understanding of the resonant behavior of nanoslit arrays to design and fabricate such structures with embedded nanocrystal quantum dots, and show beaming of nonclassical light to a narrow angle of less than 4 deg, as well as an enhancement of the two-photon upconversion fluorescence process by a factor of ∼400.

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“…This means that the EOT only can be achieved for TM wave. However, in recent years, the possibility of EOT for TE wave was also achieved not only by theories and numerical calculations [13][14][15][16][17] but also by experiments [17,18]. And some researchers even achieved the realization of the EOT through one configuration both for TM wave and TE wave at a same wavelength [19][20][21].…”

Section: Introductionmentioning

confidence: 99%