Plasmonic control of extraordinary optical transmission in the infrared regime

Sangiao, Soraya; Freire, F. C. M.; León-Pérez, Fernando de; Rodrigo, Sergio G.

doi:10.1088/0957-4484/27/50/505202

Cited by 9 publications

(2 citation statements)

References 40 publications

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“…The obtained results are outstanding in terms of the small charge dose needed to grow nanoscale metal structures, around 50 μC/cm 2 . Thus, Cryo-FIBID excels popular nanolithography techniques such as EBL, which typically requires electron doses one order of magnitude higher 32,48 . An experiment demonstrating the scalability of the technique has been performed.…”

Section: Discussionmentioning

confidence: 99%

Ultra-fast direct growth of metallic micro- and nano-structures by focused ion beam irradiation

Córdoba

Orús

Strohauer

et al. 2019

Sci Rep

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An ultra-fast method to directly grow metallic micro- and nano-structures is introduced. It relies on a Focused Ion Beam (FIB) and a condensed layer of suitable precursor material formed on the substrate under cryogenic conditions. The technique implies cooling the substrate below the condensation temperature of the gaseous precursor material, subsequently irradiating with ions according to the wanted pattern, and posteriorly heating the substrate above the condensation temperature. Here, using W(CO)6 as the precursor material, a Ga+ FIB, and a substrate temperature of −100 °C, W-C metallic layers and nanowires with resolution down to 38 nm have been grown by Cryogenic Focused Ion Beam Induced Deposition (Cryo-FIBID). The most important advantages of Cryo-FIBID are the fast growth rate (about 600 times higher than conventional FIBID with the precursor material in gas phase) and the low ion irradiation dose required (∼50 μC/cm2), which gives rise to very low Ga concentrations in the grown material and in the substrate (≤0.2%). Electrical measurements indicate that W-C layers and nanowires grown by Cryo-FIBID exhibit metallic resistivity. These features pave the way for the use of Cryo-FIBID in various applications in micro- and nano-lithography such as circuit editing, photomask repair, hard masks, and the growth of nanowires and contacts. As a proof of concept, we show the use of Cryo-FIBID to grow metallic contacts on a Pt-C nanowire and investigate its transport properties. The contacts have been grown in less than one minute, which is considerably faster than the time needed to grow the same contacts with conventional FIBID, around 10 hours.

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Section: Discussionmentioning

confidence: 99%

Ultra-fast direct growth of metallic micro- and nano-structures by focused ion beam irradiation

Córdoba

Orús

Strohauer

et al. 2019

Sci Rep

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“…In this regard, the main challenge is to control the intrinsic properties of SPP and LSP modes through active elements, which can modulate transmission properties without device customization. Fundamentally, the spectral features of the SPP and LSP modes depend on the geometry and dimensions of the metal-hole nanostructure [12,13]. More specifically, passive elements, such as hole diameter, periodicity, and the dielectric environment alter the spectral response of plasmon resonances [14].…”

Section: Introductionmentioning

confidence: 99%

All-optical control of ultrafast plasmon resonances in the pulse-driven extraordinary optical transmission

Asif¹,

Tașgın²,

Şahin³

2023

J. Opt.

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Understanding the ultrafast processes at their natural-time scale is crucial for controlling and manipulating nanoscale optoelectronic devices under light-matter interaction. Here, we demonstrate that ultrafast plasmon resonances, attributed to the phenomenon of Extraordinary Optical Transmission (EOT), can be significantly modified by tuning the spectral and temporal properties of the ultrashort light pulse. In this scheme, all-optical active tuning governs spatial and temporal enhancement of plasmon oscillations in the EOT system without device customization. We analyze the spectral and temporal evolution of the system through two approaches. First, we develop a theoretical framework based on the coupled harmonic oscillator model, which analytically describes the dynamics of plasmon modes in the coupled and uncoupled state. Later, we compare the evolution of the system under continuous wave and pulsed illumination. Further, we discuss time-resolved spectral and spatial dynamics of plasmon modes through 3D-FDTD simulation method and wavelet transform. Our results show that optical tuning of oscillation time, intensity, and spectral properties of propagating and localized plasmon modes yields a 3-fold enhancement in the EOT signal. The active tuning of the EOT sensor through ultrashort light pulses pave the way for the development of on-chip photonic devices employing high-resolution imaging and sensing of abundant atomic and molecular systems.

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High Optical Transmission in a Hybrid Plasmonic-Optical Structure with a Continuous Metal Film

Wang

Hou

2017

Plasmonics

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Plasmonic control of extraordinary optical transmission in the infrared regime

Cited by 9 publications

References 40 publications

Ultra-fast direct growth of metallic micro- and nano-structures by focused ion beam irradiation

Ultra-fast direct growth of metallic micro- and nano-structures by focused ion beam irradiation

All-optical control of ultrafast plasmon resonances in the pulse-driven extraordinary optical transmission

High Optical Transmission in a Hybrid Plasmonic-Optical Structure with a Continuous Metal Film

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