Dispersion anomalies of surface plasmons on corrugated metal-insulator interfaces

Heitmann, D.; Kroó, N.; Schulz, Christiane; Szentirmay, Zs.

doi:10.1103/physrevb.35.2660

Cited by 54 publications

(11 citation statements)

References 14 publications

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“…As for our first experiment, we present here briefly the main conclusions only, the details have been described in [8][9][10][11][12]. According to [13,14], the experiment was performed in the Kretschmann-geometry using gold and silver layers.…”

Section: Introductionmentioning

confidence: 99%

Quantum metal optics

Kroó

Varró

Farkas

et al. 2007

Journal of Modern Optics

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Experimental and theoretical studies of the statistical properties of surface plasmon polaritons (SPOs) are described. Both classical and non-classical properties of surface plasmons are analysed. The temporal statistical behaviour at low excitation level, as measured by detecting the SPO emitted photon statistics as expressed by the correlation function and the temporal photon count distribution, show that the SPOs preserve the photon statistics of the laser. In the spatial distribution of the plasmon field as measured by an STM, squeezing, i.e. non-classical properties, were found. Independent simple model calculations confirmed the existence of both enhanced EM fields of surface plasmons and their squeezed character.

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Section: Introductionmentioning

confidence: 99%

Quantum metal optics

Kroó

Varró

Farkas

et al. 2007

Journal of Modern Optics

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“…24 However, the experimental data in Ref. [17][18][19][20][21][22][23]25 presented very little evidence of band opening effect, which is referred to as a "mini gap" in Ref. 24.…”

Section: Resultsmentioning

confidence: 99%

“…However, the band folding branches and band gap created by the first-order grating component is negligible. [17][18][19][20][21][22][23] Experimental data related to the band gap was obtained from the coupling between the first-and second-order Fourier component of the periodic gratings in Ref 4,24. The +1/-1 SPP modes generated by the first-order Fourier component were interfered each other to form degenerate standing waves.…”

Section: Introductionmentioning

confidence: 99%

Band diagrams and field distribution of squarely-modulated slab metallic gratings

Lee

Hung

2016

AIP Advances

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The optical transmission properties of squarely-modulated metallic gratings has been widely investigated. This study used rigorous-coupled wave analysis (RCWA) to re-examine in detail the band structure of a laminated metal film with squarely-modulated metallic gratings located at the top. The top structure was shown to modify the long-range surface plasmon polariton modes (LRSPP) at both interfaces of the thin metal film. When the thickness of the intact metal film was altered, the coupling between the two interfaces presented intriguing behavior. If the thickness of the metallic film was 30nm, the field achieved strong coupling similar to that of a two-level system. When the thickness was decreased to 10nm, the band branch possessing negative group velocity was dominant. Our results also verify that the first-order Fourier expansion of the gratings determined the energy position of bands at k||=0, whereas the second-order term caused band gap opening. Introducing an asymmetrical component to the grating profile intensified the opening effect at k||=0 due to an increase in the amplitude of the second-order Fourier component.

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“…Such bandgaps have been reported before [19][20][21][22][23][24][25][26][27][28][29][30] and have been used to control surface-enhanced Raman scattering (SER) [25].…”

Section: Introductionmentioning

confidence: 98%

Plasmonic Bandgap in 1D Metallic Nanostructured Devices

Javaid

Iqbal

2015

Plasmonics

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This research work reports the excitation of surface plasmon polaritons (SPPs) in a 1D grating device in a gold film on glass substrate. Various grating structures have been modelled using finite element analysis (FEA) in comsol RF module. The periodicity in such devices remains constant, whereas slit width is changed for each structure. We have studied the effects of slit width on SPP resonances and formation of the plasmonic bandgap. The trend shows that bandgap energy increases with increasing slit width and reaches a maximum value for slit width nearly equal to half of the periodicity in the grating structure and then decreases which is a new and important observation. The possible reason for this optimum value of the slit width corresponds to the absence of higher plasmonic modes and the sinusoidal nature of the slit.

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Dispersion anomalies of surface plasmons on corrugated metal-insulator interfaces

Cited by 54 publications

References 14 publications

Quantum metal optics

Quantum metal optics

Band diagrams and field distribution of squarely-modulated slab metallic gratings

Plasmonic Bandgap in 1D Metallic Nanostructured Devices

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