Search Results - "Kang, Myungkoo"
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Electrically reconfigurable non-volatile metasurface using low-loss optical phase-change material
Published in Nature nanotechnology (01-06-2021)“…Active metasurfaces promise reconfigurable optics with drastically improved compactness, ruggedness, manufacturability and functionality compared to their…”
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Reconfigurable all-dielectric metalens with diffraction-limited performance
Published in Nature communications (22-02-2021)“…Active metasurfaces, whose optical properties can be modulated post-fabrication, have emerged as an intensively explored field in recent years. The efforts to…”
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Broadband transparent optical phase change materials for high-performance nonvolatile photonics
Published in Nature communications (30-09-2019)“…Optical phase change materials (O-PCMs), a unique group of materials featuring exceptional optical property contrast upon a solid-state phase transition, have…”
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Ultra-compact nonvolatile phase shifter based on electrically reprogrammable transparent phase change materials
Published in PhotoniX (26-10-2022)“…Optical phase shifters constitute the fundamental building blocks that enable programmable photonic integrated circuits (PICs)—the cornerstone of on-chip…”
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Long-lived monolithic micro-optics for multispectral GRIN applications
Published in Scientific reports (09-05-2018)“…The potential for realizing robust, monolithic, near-surface refractive micro-optic elements with long-lived stability is demonstrated in visible and infrared…”
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Electrical programmable multilevel nonvolatile photonic random-access memory
Published in Light, science & applications (01-08-2023)“…Photonic Random-Access Memories (P-RAM) are an essential component for the on-chip non-von Neumann photonic computing by eliminating optoelectronic conversion…”
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Solution-derived Ge–Sb–Se–Te phase-change chalcogenide films
Published in Scientific reports (05-08-2024)“…Ge–Sb–Se–Te chalcogenides, namely Se-substituted Ge–Sb–Te, have been developed as an alternative optical phase change material (PCM) with a high…”
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New Candidate Multicomponent Chalcogenide Glasses for Supercontinuum Generation
Published in Applied sciences (01-11-2018)“…Broadband supercontinuum (SC) generation requires host material attributes defined by both optical and physical properties and the material’s…”
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Observation of very high order multi-photon absorption in GeSbS chalcogenide glass
Published in APL photonics (01-03-2019)“…We report high order multi-photon absorption in Ge23Sb7S70 chalcogenide glasses up to the 11th order. Open aperture z-scan measurements with enhanced detection…”
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Phase Transformation and Switching Behavior of Magnetron Plasma Sputtered Ge2Sb2Se4Te
Published in Advanced photonics research (01-10-2022)“…Despite their importance in applications such as nonvolatile memory, integrated photonics, and compact optics, the crystalline‐to‐amorphous transition in…”
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An Open‐Source Multifunctional Testing Platform for Optical Phase Change Materials
Published in Small science (01-12-2023)“…Owing to their unique tunable optical properties, chalcogenide phase change materials are increasingly being investigated for optics and photonics…”
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Photochemically Engineered Large‐Area Arsenic Sulfide Micro‐Gratings for Hybrid Diffractive–Refractive Infrared Platforms
Published in Advanced photonics research (01-01-2024)“…Patterns composed of micron‐sized surface structures can abruptly change the properties of an optical wave front, including its phase, amplitude, polarization,…”
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Impact of Morphology and Microstructure on the Mechanical Properties of Ge-As-Pb-Se Glass Ceramics
Published in Applied sciences (01-04-2020)“…The impact of base glass morphology and post heat-treatment protocol on the mechanical properties (Vickers hardness and Young’s modulus) of a multi-component…”
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Multi‐Level Electro‐Thermal Switching of Optical Phase‐Change Materials Using Graphene
Published in Advanced photonics research (01-01-2021)“…Reconfigurable photonic systems featuring minimal power consumption are crucial for integrated optical devices in real‐world technology. Current active devices…”
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Global and Local Intersection of the 2018 PyeongChang Winter Olympics
Published in International journal of Japanese sociology : IJJS (01-03-2019)“…The Olympics is not a space where the global and local are shown in two separate layers. It is where various sociopolitical conflicts of the hosting country…”
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Deep learning modeling approach for metasurfaces with high degrees of freedom
Published in Optics express (12-10-2020)“…Metasurfaces have shown promising potentials in shaping optical wavefronts while remaining compact compared to bulky geometric optics devices. The design of…”
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Multifunctional Metasurface Design with a Generative Adversarial Network
Published in Advanced optical materials (01-03-2021)“…Metasurfaces have enabled precise electromagnetic (EM) wave manipulation with strong potential to obtain unprecedented functionalities and multifunctional…”
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Refractive index patterning of infrared glass ceramics through laser-induced vitrification [Invited]
Published in Optical materials express (01-09-2018)“…Refractive index modification in glass or crystalline materials typically involves conversion of state (amorphous to crystalline or crystalline to amorphous)…”
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Ge2Sb2Se5 Glass as High-capacity Promising Lithium-ion Battery Anode
Published in Nano energy (01-02-2020)“…Conventional alloying and conversion Li-host anode materials have been extensively studied as high capacity lithium ion battery anodes. However, they suffer…”
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Infrared Glass–Ceramics with Multidispersion and Gradient Refractive Index Attributes
Published in Advanced functional materials (01-08-2019)“…Infrared (IR) glass–ceramics (GCs) hold the potential to dramatically expand the range of optical material solutions available for use in bulk and planar…”
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