Plasmon related electrical effects in strongly modulated metasurfaces

Keene, David; Ronurpraful, T.; Nogniova, Natalia

doi:10.1117/12.2532069

Cited by 2 publications

(1 citation statement)

References 15 publications

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“…Polycarbonate substrates obtained from disassembled DVD-Rs (manufactured by Verbatim) have concentric periodic grooves with a periodicity of 740 nm. The details of the disk disassembling and cleaning process are described in [25]. Since the radius of these concentric circles is much higher than the other characteristic parameters in our experiments (the grating period, surface plasmon polariton (SPP) propagation length and size of the illumination spot), the presence of the groove curvature is not expected to greatly affect the results.…”

Section: Methodsmentioning

confidence: 98%

Plasmon drag effect with sharp polarity switching

2020

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The generation of significant photocurrents observed in plasmonic metasurfaces is interesting from a fundamental point of view and promising for applications in plasmon-based electronics and plasmonic sensors with compact electrical detection. We show that photoinduced voltages in strongly modulated plasmonic surfaces demonstrate a highly asymmetric angular dependence with polarity switching around the plasmon resonance conditions. The effects are tentatively attributed to coupling between localized and propagating plasmons.

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Section: Methodsmentioning

confidence: 98%

Plasmon drag effect with sharp polarity switching

2020

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Magnetic dipole emission in resonant metal-dielectric-metal structures

2022

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We explore a possibility to control magnetic dipole emission with plasmonic cavities, placing Eu3+ emitters inside profile-modulated metal-dielectric-metal structures. Significant variations in the branching ratio of the magnetic and electric dipole transitions are observed as the function of the thickness of the intermediate layer. The experimental results are confirmed with numerical simulations which account for cavity and gap plasmon resonances and predict modifications in the spontaneous emission spectrum as the function of the gap size and a strong directionality of the emission for small thicknesses of the intermediate layer. The implications of having a competition between electric and magnetic dipole relaxation channels in Eu3+ are discussed.

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Plasmon related electrical effects in strongly modulated metasurfaces

Cited by 2 publications

References 15 publications

Plasmon drag effect with sharp polarity switching

Plasmon drag effect with sharp polarity switching

Magnetic dipole emission in resonant metal-dielectric-metal structures

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