Search Results - "Kwon, Kyungmok"
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High-efficiency broadband light coupling between optical fibers and photonic integrated circuits
Published in Nanophotonics (Berlin, Germany) (01-12-2018)“…Efficient light energy transfer between optical waveguides has been a critical issue in various areas of photonics and optoelectronics. Especially, the light…”
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Heterogeneously integrated light emitting diodes and photodetectors in the metal-insulator-metal waveguide platform
Published in Nanophotonics (Berlin, Germany) (27-06-2023)“…We demonstrate heterogeneous integration of active semiconductor materials into the conventional passive metal-insulator-metal (MIM) waveguides to provide…”
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Silicon photonic wavelength cross-connect with integrated MEMS switching
Published in APL photonics (01-10-2019)“…We report on monolithically integrated wavelength cross-connects (WXCs) on an enhanced silicon photonic platform with integrated…”
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A large-scale microelectromechanical-systems-based silicon photonics LiDAR
Published in Nature (London) (10-03-2022)“…Three-dimensional (3D) imaging sensors allow machines to perceive, map and interact with the surrounding world 1 . The size of light detection and ranging…”
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Wafer-scale silicon photonic switches beyond die size limit
Published in Optica (20-04-2019)Get full text
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2D broadband beamsteering with large-scale MEMS optical phased array
Published in Optica (20-05-2019)Get full text
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7
Chemically-Etched Optical Fiber Tapers for Adiabatic Fundamental Mode Evolution Over O-and C-Bands
Published in Journal of lightwave technology (15-07-2022)“…The adiabatically tapered subwavelength-scale optical fiber tapers (OFTs) have been of interest for many photonic applications. We demonstrate chemical…”
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Highly efficient broadband adiabatic mode transformation between single-mode fibers and silicon waveguides
Published in Journal of lightwave technology (01-11-2023)“…High-efficiency optical energy transfer between dissimilar waveguides is critical for establishing seamless interconnects between heterogeneous photonic…”
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Tungsten oxide nonvolatile memory devices using photothermal in-situ oxidation method
Published in Materials letters (01-08-2020)“…•The Au/WOx/W memory devices were fabricated through a photothermal oxidation method.•The photothermal oxidation method can monitor the oxidation process in…”
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10
Randomly Distributed Fabry-Pérot-type Metal Nanowire Resonators and Their Lasing Action
Published in Scientific reports (22-04-2016)“…Optical feedback mechanisms are often obtained from well-defined resonator structures fabricated by top-down processes. Here, we demonstrate that…”
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High‐Bandwidth InGaAs Photodetectors Heterogeneously Integrated on Silicon Waveguides Using Optofluidic Assembly
Published in Laser & photonics reviews (01-03-2022)“…Light‐induced manipulation techniques have been utilized to transport, trap, or levitate microscopic objects for a wide range of applications in biology,…”
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12
Optically pumped subwavelength-scale metallodielectric nanopatch resonators
Published in Scientific reports (23-08-2016)“…We discuss subwavelength-scale semiconductor metal-optic resonators placed on the metal substrate with various top metal plate sizes. Albeit with large optical…”
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13
Electrically driven surface plasmon polaritons circuits
Published in 2015 20th Microoptics Conference (MOC) (01-10-2015)“…We report on the semiconductor-based integrated metal-dielectric-metal (MDM) photonic device platform for active generation and detection of confined surface…”
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Conference Proceeding Journal Article -
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Gap‐Mode Plasmon‐Induced Photovoltaic Effect in a Vertical Multilayer Graphene Homojunction
Published in Advanced optical materials (01-02-2020)“…Gap‐mode plasmons that occur between metallic nanoparticles and metallic films separated by a thin spacer have been widely studied in the field of nano‐optics…”
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15
Large-scale Silicon Photonic Switches
Published in 2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring) (01-06-2019)“…Silicon photonic micro-electro-mechanical-system (MEMS) offers unique advantage for reconfigurable circuits with low optical loss and low power consumption…”
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Conference Proceeding -
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Large-scale Silicon Photonics Focal Plane Switch Array for Optical Beam Steering
Published in 2021 Optical Fiber Communications Conference and Exhibition (OFC) (01-06-2021)“…We report on 128×128-element two-dimensional silicon photonics focal plane switch arrays with microelectromechanical-system optical switches for random-access…”
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Conference Proceeding -
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Low-Loss Wafer-Bonded Silicon Photonic MEMS Switches
Published in 2022 Optical Fiber Communications Conference and Exhibition (OFC) (01-03-2022)“…We report on 32\times 32 silicon photonic switches realized through wafer bonding. Broadband operation is demonstrated over 1260-1320 nm range. The maximum…”
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Conference Proceeding -
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240×240 Wafer-Scale Silicon Photonic Switches
Published in 2019 Optical Fiber Communications Conference and Exhibition (OFC) (01-03-2019)“…We report on 240×240 silicon photonic MEMS switches on 4cm × 4cm dies realized by wafer-scale integration and reticle stitching. The maximum on-chip loss is…”
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Conference Proceeding -
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A 20×20 Focal Plane Switch Array for Optical Beam Steering
Published in 2020 Conference on Lasers and Electro-Optics (CLEO) (01-05-2020)“…We present a two-dimensional random-access optical beam steering system composed of a 20×20 focal plane switch array integrated on a silicon photonics chip…”
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Conference Proceeding -
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High Efficiency Double Layer Grating Couplers Supporting Polarization Diversity for Photonic Switches
Published in 2021 Opto-Electronics and Communications Conference (OECC) (03-07-2021)“…We report on novel dual-layer grating couplers that support polarization diversity in silicon photonics. High coupling efficiency (-0.22 dB or 95.1%) and low…”
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Conference Proceeding