Highly Strained Compliant Optical Metamaterials with Large Frequency Tunability

Pryce, Imogen M.; Aydın, Koray; Kelaita, Yousif A.; Briggs, Ryan M.; Atwater, Harry A.

doi:10.1021/nl102684x

Cited by 389 publications

(399 citation statements)

References 36 publications

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“…21 Incorporating resonant elements on stretchable substrates enables mechanical tuning of the optical responses of metasurfaces. [22][23][24] Additionally, in many metasurface designs, nonlinear materials have been introduced into resonant electromagnetic fields to enhance tunable higher-order harmonic generation. 25,26 Apart from the tunability, efficiency is another factor to consider for metasurface in real-world applications.…”

Section: Abstract: Nanophotonics · Stretchable Electronics · Subwavelmentioning

confidence: 99%

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Mechanically Tunable Dielectric Resonator Metasurfaces at Visible Frequencies

Gutruf¹,

et al. 2015

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Devices that manipulate light represent the future of information processing. Flat optics and structures with subwavelength periodic features (metasurfaces) provide compact and efficient solutions. The key bottleneck is efficiency, and replacing metallic resonators with dielectric resonators has been shown to significantly enhance performance. To extend the functionalities of dielectric metasurfaces to real-world optical applications, the ability to tune their properties becomes important. In this article, we present a mechanically tunable all-dielectric metasurface. This is composed of an array of dielectric resonators embedded in an elastomeric matrix. The optical response of the structure under a uniaxial strain is analyzed by mechanical−electromagnetic co-simulations. It is experimentally demonstrated that the metasurface exhibits remarkable resonance shifts. Analysis using a Lagrangian model reveals that strain modulates the near-field mutual interaction between resonant dielectric elements. The ability to control and alter inter-resonator coupling will position dielectric metasurfaces as functional elements of reconfigurable optical devices.

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Section: Abstract: Nanophotonics · Stretchable Electronics · Subwavelmentioning

confidence: 99%

“…The elastomeric matrix, namely polydimethylsiloxane (PDMS), is commonly used in stretchable technologies 22,37 as a flexible substrate due to its remarkable elasticity and low optical losses.…”

Section: Abstract: Nanophotonics · Stretchable Electronics · Subwavelmentioning

confidence: 99%

Mechanically Tunable Dielectric Resonator Metasurfaces at Visible Frequencies

Gutruf¹,

et al. 2015

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“…Alternative methods for high-resolution patterning of soft polymers have found some success, and include nano-imprint lithography or stamping 23,24 , and self-assembly 1,25 ; these methods allow for highly parallelized fabrication of submicron structures on polymer substrates. All such approaches pose problems for fabrication of implantable microdevices, including difficulties aligning multi-layer patterns, restrictions on material choice, and for nano-imprint lithography, use of high temperatures and pressures, which can deform polymer substrates.…”

Section: Introductionmentioning

confidence: 99%

Electron-beam lithography for polymer bioMEMS with submicron features

Scholten

Meng

2016

Microsyst Nanoeng

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We present a method for submicron fabrication of flexible, thin-film structures fully encapsulated in biocompatible polymer poly (chloro-p-xylylene) (Parylene C) that improves feature size and resolution by an order of magnitude compared with prior work. We achieved critical dimensions as small as 250 nm by adapting electron beam lithography for use on vapor deposited Parylene-coated substrates and fabricated encapsulated metal structures, including conducting traces, serpentine resistors, and nano-patterned electrodes. Structures were probed electrically and mechanically demonstrating robust performance even under flexion or torsion. The developed fabrication process for electron beam lithography on Parylene-coated substrates and characterization of the resulting structures are presented in addition to a discussion of the challenges of applying electron beam lithography to polymers. As an application of the technique, a Parylene-based neural probe prototype was fabricated with 32 recording sites patterned along a 2 mm long shank, an electrode density surpassing any prior polymer probe.

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“…Fano resonances in plasmonic structures are of great recent interest 7,[32][33][34][35][36][37][38][39][40] . It is suggested that their sharp characteristic spectral features and sensitivity to the sample parameters may turn them into efficient sensors.…”

mentioning

confidence: 99%

Fano Resonance in an Electrically Driven Plasmonic Device

et al. 2016

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We present an electrically driven plasmonic device consisting of a gold nanoparticle trapped in a gap between two electrodes. The tunneling current in the device generates plasmons, which decay radiatively. The emitted spectrum extends up to an energy that depends on the applied voltage. Characterization of the electrical conductance at low temperatures allows us to extract the voltage drop on each tunnel barrier and the corresponding emitted spectrum. In several devices we find a pronounced sharp asymmetrical dip in the spectrum, which we identify as a Fano resonance. Finite-difference time-domain (FDTD) calculations reveal that this resonance is due to interference between the nanoparticle and electrodes dipolar fields, and can be conveniently controlled by the structural parameters. Electrically driven plasmonic devices may offer unique opportunities as a research tool and for practical applications [1][2][3][4][5] . In such devices, current that flows across a metallic tunnel junction

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Highly Strained Compliant Optical Metamaterials with Large Frequency Tunability

Cited by 389 publications

References 36 publications

Mechanically Tunable Dielectric Resonator Metasurfaces at Visible Frequencies

Mechanically Tunable Dielectric Resonator Metasurfaces at Visible Frequencies

Electron-beam lithography for polymer bioMEMS with submicron features

Fano Resonance in an Electrically Driven Plasmonic Device

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