Mechanisms Responsible for Extraordinary Optical Transmission Through One-Dimensional Periodic Arrays of Infinite Sub-wavelength Slits: the Origin of Previous EOT Position Prediction Misinterpretations

Fiala, Jan; Richter, Ivan

doi:10.1007/s11468-017-0579-0

Cited by 8 publications

(6 citation statements)

References 40 publications

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“…This concept is consistent with the shape of the dispersion relation of the SPP, which corresponds to the spectral positions of the EOT [18]. Gradually, also with the contribution of the authors of this paper [19,20], the present established theory of EOT has emerged based on a combination of several processes involved in subwavelength transmission: non-resonant processes, related to the simple passage of light through subwavelength apertures, and resonant ones, taking into account the interaction of the incident light with the periodic arrangement of the apertures. The approaches/phenomena used include (i) the excitation of cavity modes (CM) inside individual holes/slits, the latter considered as open Fabry-Perot (FP) resonators, (ii) the resonant tunneling phenomenon consisting in the coupling of the SPP on both horizontal surfaces of the metallic lattice structure via evanescent waves passing through the holes, (iii) the existence of a "creeping" wave [21], and (iv) the effective medium theory (EMT) approach.…”

Section: Basics Of Plasmonic Extraordinary Optical Transmissionsupporting

confidence: 88%

Fiber Optic Sensor of Ammonia Gas Using Plasmonic Extraordinary Optical Transmission

Kalvoda

Jakoubková

Burda

et al. 2023

Sensors

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While standard surface plasmon resonance (bio) sensing, relaying on propagating surface plasmon polariton sensitivity on homogeneous metal/dielectric boundaries, represents nowadays a routine sensing technique, other alternatives, such as inverse designs with nanostructured plasmonic periodic hole arrays, have been far less studied, especially in the context of gas sensing applications. Here, we present a specific application of such a plasmonic nanostructured array for ammonia gas sensing, based on a combination of fiber optics, extraordinary optical transmission (EOT) effect, and chemo-optical transducer selectively sensitive to ammonia gas. The nanostructured array of holes is drilled in a thin plasmonic gold layer by means of focused ion beam technique. The structure is covered by chemo-optical transducer layer showing selective spectral sensitivity towards gaseous ammonia. Metallic complex of 5-(4′-dialkylamino-phenylimino)-quinoline-8-one dye soaked in polydimethylsiloxane (PDMS) matrix is used in place of the transducer. Spectral transmission of the resulting structure and its changes under exposition to ammonia gas of various concentrations is then interrogated by fiber optics tools. The observed VIS-NIR EOT spectra are juxtaposed to the predictions performed by the rigorous Fourier modal method (FMM), providing useful theoretical feedback to the experimental data, and ammonia gas sensing mechanism of the whole EOT system and its parameters are discussed.

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Section: Basics Of Plasmonic Extraordinary Optical Transmissionsupporting

confidence: 88%

Fiber Optic Sensor of Ammonia Gas Using Plasmonic Extraordinary Optical Transmission

Kalvoda

Jakoubková

Burda

et al. 2023

Sensors

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“…Despite the fact, that behavior of the EOT resonances and their interactions in noble metal plasmonic structures were studied in details [42,43], the influence of the possible coupling on the MO response was never deeply analyzed before. Differently and adding to these demonstrations of magnetoplasmonic nonreciprocity enhancement, we report here on the anomalous control of the sign of the nonreciprocal phenomena when exploiting the different resonances in a magnetoplasmonic system [44].…”

Section: Introductionmentioning

confidence: 99%

Magnetoplasmonic nanograting geometry enables optical nonreciprocity sign control

Halagačka¹,

Vanwolleghem²,

Vaurette³

et al. 2018

Opt. Express

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We experimentally demonstrate a disruptive approach to control magnetooptical nonreciprocal effects. It has been known that the combination of a magneto-optically (MO) active substrate and extraordinary transmission (EOT) effects through deep-subwavelength nanoslits of a noble metal grating, leads to giant enhancements of the magnitude of the MO effects that would normally be obtained on just the bar substrate. This was demonstrated both in the transmission configuration, where the OET is directly observed, as well as in reflection configuration, where an increase of a transmitted power results in a decrease in reflected power. We show here that even more than just an enhancement, the MO effects can also undergo a sign reversal by achieving a hybridization of the different types of resonances at play in these EOT nanogratings. By tuning the geometrical profile of the grating's slits, one can engineer -for a fixed wavelength and fixed magnetization -the transverse MO Kerr effect (TMOKE) reflectivity of such a magnetoplasmonic system to be enhanced, extinguished or inversely enhanced. We have fabricated gold gratings with varying nanoslit widths on a Bi-substituted gadolinium iron garnet and experimentally confirmed such a behavior using a customized magneto-optic Mueller matrix ellipsometer. This demonstration allows new design paradigms for integrated nonreciprocal circuits and biochemical sensors with increased sensitivity and reduced footprint.

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“…The cavity resonance of SPPs in the slits can occur only when both the FP and phase-matching conditions, given in Eqs. (4) 33,34) and ( 5) 9,10) are satisfied, which is essentially different from that of the ordinary SPP mode.…”

Section: ¼ àmentioning

confidence: 89%

“…(3). 33,34) Although a finite thickness of grating slits is considered, the SPP eigen mode is closely fitted to the dispersion relation given below.…”

Section: ¼ àmentioning

confidence: 99%

“…In contrast, the ordinary SPP mode located on the grating surface can only be radiated into upper half-space because the SPPs cannot penetrate the thick enough grating to reach the lower grating surface. 33,34) After having understood the physical mechanism of coherent THz SPR from a BDS grating, we now deal with the enhancement of the radiation power density by SPPs. According to the diffraction model, the evanescent wave generated by the electron beam can be diffracted into an incoherent radiation.…”

Section: ¼ àmentioning

confidence: 99%

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Coherent terahertz Smith–Purcell radiation from Dirac semimetals grating with very deep and narrow slits

Zhao

Lian

et al. 2018

Appl. Phys. Express

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We demonstrate a physical mechanism of multicolor coherent terahertz (THz) Smith–Purcell radiation from surface plasmon polaritons (SPPs). In Dirac semimetals gratings with very deep and narrow slits, two types of SPP modes, the cavity and ordinary SPP modes, can be excited by fast electrons under different excitation conditions and then diffracted into radiation in specific directions. The radiation intensity is remarkably enhanced when SPPs are excited, and frequencies can be widely tuned by adjusting the parameters of grating and electrons. Our findings could provide a promising way for developing room temperature, coherent, tunable, directional, and intense THz radiation sources.

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Mechanisms Responsible for Extraordinary Optical Transmission Through One-Dimensional Periodic Arrays of Infinite Sub-wavelength Slits: the Origin of Previous EOT Position Prediction Misinterpretations

Cited by 8 publications

References 40 publications

Fiber Optic Sensor of Ammonia Gas Using Plasmonic Extraordinary Optical Transmission

Fiber Optic Sensor of Ammonia Gas Using Plasmonic Extraordinary Optical Transmission

Magnetoplasmonic nanograting geometry enables optical nonreciprocity sign control

Coherent terahertz Smith–Purcell radiation from Dirac semimetals grating with very deep and narrow slits

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