Advances in Plasmonics and Nanophotonics

Gerislioglu, Burak; Ahmadivand, Arash

doi:10.3390/nano11113159

Cited by 3 publications

(2 citation statements)

References 5 publications

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“…The plasmonic sensor facilitates real-time monitoring of these biomolecular binding events [6,7,9,15,16]. The HMM [17][18][19] property amplifies the evanescent waves and characteristic sub-wavelength resolution that enhances sensitivity.…”

Section: Introductionmentioning

confidence: 99%

Electroplating-based engineering of plasmonic nanorod metamaterials for biosensing applications

Sahoo

Kumar

2023

Nanotechnology

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Sensing lower molecular weight in a diluted solution using a label-free biosensor is challenging and requires a miniaturized plasmonic structure, e.g., a vertical Au nanorod (AuNR) array based metamaterials. The sensitivity of a sensor mainly depends on transducer properties and hence for instance, the AuNR array geometry requires optimization. Physical vapour deposition methods (e.g., sputtering and e-beam evaporation) require a vacuum environment to deposit Au, which is costly, time-consuming, and thickness-limited. On the other hand, chemical deposition, i.e., electroplating deposit higher thickness in less time and at lower cost, becomes an alternative method for Au deposition. In this work, we present a detailed optimization for electroplating based fabrication of these metamaterials. We find that slightly acidic (6.0 < pH < 7.0) gold sulfite solution supports immersion deposition, which should be minimized to avoid uncontrolled Au deposition. Immersion deposition leads to plate-like (for smaller radius AuNR) or capped-like, i.e., mushroom (for higher radius AuNR) structure formation. The electroplating time and DC supply are the tuning parameters that decide the geometry of the vertically aligned AuNR array in area-dependent electroplating deposition. This work will have implications for developing plasmonic metamaterial based sensors.

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Section: Introductionmentioning

confidence: 99%

Electroplating-based engineering of plasmonic nanorod metamaterials for biosensing applications

Sahoo

Kumar

2023

Nanotechnology

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“…Metamaterials are another artificial material with subwavelength patterns [ 13 , 14 , 15 , 16 ]. Usually, they exhibit average effects of the electromagnetic response of the medium.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Self-Collimation Effect in Photonic Crystal Membranes Using Hyperbolic Metamaterials

et al. 2022

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Hyperbolic metamaterials (HMMs) exhibit high tunability in photonic devices. This study numerically investigates light propagation in photonic crystal (PhC) membranes containing HMMs. The proposed HMM PhC membranes contain square HMM rods, which comprise dielectric (Si) and metallic (Ag) layers. Owing to their property of subwavelength field localization, HMMs can be applied to PhCs to improve tunability and thus enhance the self-collimation (SC) effect of PhCs. The SC points were obtained in the second HMM PhC band, wherein the nearby dispersion curves change significantly. In addition, the effect of the HMM filling factor (i.e., the ratio of the metal-layer to unit-cell thicknesses) on the SC point frequency is studied. Finally, we demonstrate the efficient control of beam behaviors using HMM PhC membranes while considering the nonlinearity of Ag. The findings of this study confirm that high-performance HMM PhC membranes can be employed in nonlinear all-optical switches, filters, tunable lenses, and other integrated optical devices.

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Broadband plasmonic switches based on nanodisc-dimers with progressively increasing diameters on a plasmonic film with a VO2 spacer

Dalal

Sharma²

2023

Optics Communications

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Advances in Plasmonics and Nanophotonics

Abstract: Recent developments in subwavelength localization of light have paved the way of novel research directions in the field of optics, plasmonics, and nanophotonics [...]

Cited by 3 publications

References 5 publications

Electroplating-based engineering of plasmonic nanorod metamaterials for biosensing applications

Electroplating-based engineering of plasmonic nanorod metamaterials for biosensing applications

Enhancement of Self-Collimation Effect in Photonic Crystal Membranes Using Hyperbolic Metamaterials

Broadband plasmonic switches based on nanodisc-dimers with progressively increasing diameters on a plasmonic film with a VO2 spacer

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