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Wavelength-size hybrid Si-VO(2) waveguide electroabsorption optical switches and photodetectors.

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TLDR
Ultra-compact waveguide electro absorption optical switches and photodetectors with micron- and sub-micron lengths and compatible with silicon (Si) waveguides are demonstrated using the insulator-metal phase transition of vanadium dioxide (VO(2).
Abstract
Ultra-compact waveguide electroabsorption optical switches and photodetectors with micron- and sub-micron lengths and compatible with silicon (Si) waveguides are demonstrated using the insulator-metal phase transition of vanadium dioxide (VO(2)). A 1 μm long hybrid Si-VO(2) device is shown to achieve a high extinction ratio of 12 dB and a competitive insertion loss of 5 dB over a broad bandwidth of 100 nm near λ = 1550 nm. The device, operated as a photodetector, can measure optical powers less than 1 μW with a responsivity in excess of 10 A/W. With volumes that are about 100 to 1000 times smaller than today's active Si photonic components, the hybrid Si-VO(2) devices show the feasibility of integrating transition metal oxides on Si photonic platforms for nanoscale electro-optic elements.

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Citations
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The 2016 oxide electronic materials and oxide interfaces roadmap

TL;DR: In this paper, the authors present a roadmap for oxide-based electronics with a focus on the necessary advances required to implement these materials, including both conventional and novel techniques for the synthesis, characterization, processing and fabrication of nanostructured oxides and oxide based devices.
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Towards Oxide Electronics: a Roadmap

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TL;DR: The Towards Oxide-Based Electronics (TO-BE) Action as mentioned in this paper has been recently running in Europe and has involved as participants several hundred scientists from 29 EU countries in a wide four-year project.
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Optically Monitored Electrical Switching in VO2

TL;DR: In this article, a hybrid silicon-vanadium dioxide (Si-VO2) modulator was proposed for direct probing of both the electrically triggered semiconductor-to-metal phase transition in VO2 and the reverse transition from metal to semiconductor.
Journal ArticleDOI

Ultracompact Si-GST Hybrid Waveguides for Nonvolatile Light Wave Manipulation

TL;DR: In this article, the basic optical properties of a sub-wavelength-dimension silicon ridge waveguide with a 20-nm-thick Ge2Sb2Te5 (GST) top-clad layer were studied.
Journal ArticleDOI

Plasmonic nanogap enhanced phase-change devices with dual electrical-optical functionality

TL;DR: In this article, an integrated phase-change memory cell that can be electrically or optically switched between binary or multilevel states is presented. But it cannot be read out both optically and electrically, offering a new strategy for merging computing and communications technologies.
References
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Journal ArticleDOI

A graphene-based broadband optical modulator

TL;DR: Graphene-based optical modulation mechanism, with combined advantages of compact footprint, low operation voltage and ultrafast modulation speed across a broad range of wavelengths, can enable novel architectures for on-chip optical communications.
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Micrometre-scale silicon electro-optic modulator

TL;DR: Electro-optic modulators are one of the most critical components in optoelectronic integration, and decreasing their size may enable novel chip architectures, and here a high-speed electro-optical modulator in compact silicon structures is experimentally demonstrated.
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Silicon optical modulators

TL;DR: The techniques that have, and will, be used to implement silicon optical modulators, as well as the outlook for these devices, and the candidate solutions of the future are discussed.
Journal ArticleDOI

Femtosecond Structural Dynamics in VO2 during an Ultrafast Solid-Solid Phase Transition.

TL;DR: Femtosecond x-ray and visible pulses were used to probe structural and electronic dynamics during an optically driven, solid-solid phase transition in VO, suggesting that, in this regime, the structural transition may not be thermally initiated.
Journal ArticleDOI

Terahertz-field-induced insulator-to-metal transition in vanadium dioxide metamaterial

TL;DR: The observation of an insulator–metal transition in vanadium dioxide induced by a terahertz electric field is reported, demonstrating that integration of metamaterials with complex matter is a viable pathway to realize functional nonlinear electromagnetic composites.
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