Search Results - "Heuk Park"
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1
Shaping Microcrystals of Metal–Organic Frameworks by Reaction–Diffusion
Published in Angewandte Chemie International Edition (22-06-2020)“…When components of a metal–organic framework (MOF) and a crystal growth modulator diffuse through a gel medium, they can form arrays of regularly‐spaced…”
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2
Large‐Area, Freestanding MOF Films of Planar, Curvilinear, or Micropatterned Topographies
Published in Angewandte Chemie International Edition (02-01-2017)“…Freestanding MOF films up to six‐inches across and replicating various surface (micro)patterns are prepared via a templated growth method. When grown on copper…”
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3
High Speed and Low Latency Passive Optical Network for 5G Wireless Systems
Published in Journal of lightwave technology (15-06-2019)“…To meet the latency and bandwidth requirements of 5G mobile services and next-generation residential/business services, we present high speed and low-latency…”
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4
Silicon-Nanowire-Type Polarization-Diversified CWDM Demultiplexer for Low Polarization Crosstalk
Published in Nanomaterials (Basel, Switzerland) (01-08-2023)“…Coarse wavelength division multiplexing (CWDM)-targeted novel silicon (Si)-nanowire-type polarization-diversified optical demultiplexers were numerically…”
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5
Enhanced quantum efficiency in polymer electroluminescence devices by inserting a tunneling barrier formed by Langmuir–Blodgett films
Published in Applied physics letters (29-07-1996)“…Quantum efficiency in a polymer electroluminescence device is significantly improved by inserting a thin insulating layer with the thickness of tunneling…”
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6
Coherent terahertz wireless communication using dual-parallel MZM-based silicon photonic integrated circuits
Published in Optics express (17-01-2022)“…Coherent terahertz (THz) wireless communication using silicon photonics technology provides critical solutions for achieving high-capacity wireless…”
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7
53 GBd PAM-4 fully-integrated silicon photonics transmitter with a hybrid flip-chip bonded laser
Published in Optics express (07-11-2022)“…We present a fully-integrated single-lane 53 GBd PAM-4 silicon photonics (SiPh) transmitter (Tx) with a flip-chip bonded laser diode (LD). The LD is…”
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8
Demonstration of photonics-aided terahertz wireless transmission system with using silicon photonics circuit
Published in Optics express (03-08-2020)“…We experimentally demonstrate the use of silicon photonics circuit (SPC) in the simple and cost-effective photonics-aided Terahertz (THz) wireless transmission…”
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9
Polymeric 2 x 2 electrooptic switch consisting of asymmetric Y junctions and Mach-Zehnder interferometer
Published in IEEE photonics technology letters (01-06-1997)“…2×2 electrooptic switches consisting of a pair of asymmetric Y junctions and Mach-Zehnder interferometer have been demonstrated in polymeric waveguides. The…”
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10
Demonstration of photonics-aided terahertz wireless transmission system with using silicon photonics circuit: erratum
Published in Optics express (17-08-2020)“…We present an erratum for our recent paper [ Opt. Express 28 , 23397 ( 2020 ) 10.1364/OE.398460 ] to include funding information in the funding section…”
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11
Cost-effective next generation mobile fronthaul architecture with multi-IF carrier transmission scheme
Published in OFC 2014 (01-03-2014)“…We proposed a cost-effective next generation mobile fronthaul architecture with multi-IF carrier transmission scheme and investigated the system performances…”
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Conference Proceeding -
12
High performance electro-optic polymer waveguide device
Published in Applied physics letters (29-12-1997)“…A high performance electro-optic polymer modulator is fabricated by utilizing a thermally curable cladding polymer. Half-wave modulation voltage as low as 3.7…”
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13
Experimental demonstration of 50 Gb/s (2 × 25 Gb/s) TDM/WDM PON over 64-way power split using O-band up/down transmission over 20 km with dynamic bandwidth allocation and SDN control
Published in Optics express (17-09-2018)“…For the accommodation of mobile, business, and residential service in the same optical distribution network, we experimentally demonstrate 50 Gb/s (25 Gb/s × 2…”
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14
The initial state of dark spots in degradation of polymer lighting-emitting diodes
Published in Synthetic metals (01-06-2000)“…The initial state of dark spots in polymer light-emitting diodes (PLEDs) with poly[2-methoxy-5-(2′-ethyl-hexyloxy)-1,4-phenylene vinylene] (MEH-PPV) layer as…”
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15
Real-time demonstration of QoS guaranteed 25-Gb/s PON prototype with Ethernet-PON MAC/PHY and cost-effective APD receivers for 100-Gb/s access networks
Published in Optics express (27-06-2016)“…We demonstrate a real-time 25-Gb/s PON prototype with ethernet-PON MAC/PHY, O-band transmitter, and cost-effective APD receivers. With applying parasitic…”
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16
Experimental demonstration of wavelength domain rogue-free ONU based on wavelength-pairing for TDM/WDM optical access networks
Published in Optics express (30-11-2015)“…In this study, we propose and experimentally demonstrate a wavelength domain rogue-free ONU based on wavelength-pairing of downstream and upstream signals for…”
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17
Simplified crosstalk floor representation for a design parameter of silicon AWG
Published in 2014 12th International Conference on Optical Internet 2014 (COIN) (01-08-2014)“…The relation between the width variation and the crosstalk floor is derived assuming the fabrication imperfection dominates the phase error. The calculated…”
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Conference Proceeding -
18
Polarization stabilizer using a polarization splitter and a thermooptic polymer waveguide device
Published in IEEE photonics technology letters (01-12-1998)“…For the stabilization of the time-varying light polarization in the optical fiber, we demonstrates a polarization stabilizer by using a fiber-optic…”
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19
Silicon AWG as a tunable filter in tunable ONU for TWDM-PON application
Published in 2014 12th International Conference on Optical Internet 2014 (COIN) (01-08-2014)“…We have proposed to use a silicon AWG as a tunable filter for TWDM-PON ONU. Feasibility of the proposed ONU configuration was experimentally demonstrated using…”
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Conference Proceeding -
20
Self‐Assembling Films of Covalent Organic Frameworks Enable Long‐Term, Efficient Cycling of Zinc‐Ion Batteries
Published in Advanced materials (Weinheim) (01-08-2021)“…Despite their safety, nontoxicity, and cost‐effectiveness, zinc aqueous batteries still suffer from limited rechargeability and poor cycle life, largely due to…”
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