Search Results - "Wook Lee, Joong"
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Single-Molecule FRET Detection of Sub-Nanometer Distance Changes in the Range below a 3-Nanometer Scale
Published in Biosensors (Basel) (08-11-2020)“…Single-molecule fluorescence energy transfer (FRET) detection has become a key technique to monitor intra- and intermolecular distance changes in biological…”
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2
Nondestructive Internal Defect Detection Using a CW–THz Imaging System in XLPE for Power Cable Insulation
Published in Applied sciences (01-03-2020)“…The demand for internal nondestructive testing and inspection techniques is rapidly increasing. Using a continuous wave (CW) terahertz (THz) imaging system, we…”
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3
Controllable Fano-like Resonance in Terahertz Planar Meta-Rotamers
Published in Applied sciences (01-11-2021)“…Meta-molecules composed of meta-atoms exhibit various electromagnetic phenomena owing to the interaction among the resonance modes of the meta-atoms. In this…”
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4
Terahertz modulation on angle-dependent photoexcitation in organic-inorganic hybrid structures
Published in Applied physics letters (07-10-2013)“…The characteristics of terahertz (THz) modulation in organic copper phthalocyanine thin films deposited on a Si wafer were investigated by angle-dependent…”
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5
Organic conjugated material-based broadband terahertz wave modulators
Published in Applied physics letters (08-08-2011)“…A simple and efficient broadband terahertz (THz) wave modulator based on an organic conjugated material thin film, 200-nm thick organic copper phthalocyanine…”
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6
All-Hot-Spot Bulk Surface-Enhanced Raman Scattering (SERS) Substrates: Attomolar Detection of Adsorbates with Designer Plasmonic Nanoparticles
Published in Journal of the American Chemical Society (27-07-2022)“…Here we report a synthetic pathway toward Au truncated octahedral dual-rim nanoframes wherein two functional facets are formed including (1) eight hot nanogaps…”
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Plasmonic All-Frame-Faceted Octahedral Nanoframes with Eight Engraved Y‑Shaped Hot Zones
Published in ACS nano (28-06-2022)“…We report the synthesis of all-frame-faceted octahedral nanoframes containing eight Y-shaped hot zones in a single entity where electromagnetic near-field…”
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8
Exploring the dynamic nature of divalent metal ions involved in DNA cleavage by CRISPR-Cas12a
Published in Chemical communications (Cambridge, England) (08-02-2022)“…CRISPR-Cas12a has been widely used in genome editing and nucleic acid detection. In both of these applications, Cas12a cleaves target DNA in a divalent metal…”
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9
Three-dimensional nanoframes with dual rims as nanoprobes for biosensing
Published in Nature communications (16-08-2022)“…Three-dimensional (3D) nanoframe structures are very appealing because their inner voids and ridges interact efficiently with light and analytes, allowing for…”
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10
Nesting of multiple polyhedral plasmonic nanoframes into a single entity
Published in Nature communications (04-08-2022)“…The development of plasmonic nanostructures with intricate nanoframe morphologies has attracted considerable interest for improving catalytic and optical…”
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11
Effects of thermal aging on cellulose pressboard using terahertz time-domain spectroscopy
Published in Current applied physics (01-11-2019)“…We demonstrate a method for examining the effects of thermal aging of cellulose pressboard using terahertz time-domain spectroscopy. The change of refractive…”
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12
Ionizing terahertz waves with 260 MV/cm from scalable optical rectification
Published in Light, science & applications (27-05-2024)“…Terahertz (THz) waves, known as non-ionizing radiation owing to their low photon energies, can actually ionize atoms and molecules when a sufficiently large…”
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13
Nondestructive Tomographic Imaging of Rust with Rapid THz Time-Domain Spectroscopy
Published in Applied sciences (01-11-2021)“…In this study, we developed a rapid nondestructive tool for testing rust spread in a metal covered by a paint layer by using a THz time-domain spectroscopy…”
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14
Influence of Size and Shape Anisotropy on Optical Properties of CdSe Quantum Dots
Published in Nanomaterials (Basel, Switzerland) (12-08-2020)“…We used low-temperature reactions to synthesize different-sized CdSe quantum dots (QDs) capped with fatty-acid and phosphine ligands. From the correlation of…”
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15
Highly efficient terahertz wave modulators by photo-excitation of organics/silicon bilayers
Published in Applied physics letters (07-07-2014)“…Using hybrid bilayer systems comprising a molecular organic semiconductor and silicon, we achieve optically controllable active terahertz (THz) modulators that…”
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16
Conditions for optimal efficiency of PCBM-based terahertz modulators
Published in AIP advances (01-10-2017)“…We demonstrate the conditions for optimal modulation efficiency of active terahertz modulators based on phenyl-C61-butyric acid methyl ester (PCBM)-silicon…”
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17
Metal-Organic Hybrid Metamaterials for Spectral-Band Selective Active Terahertz Modulators
Published in Applied sciences (01-03-2021)“…Optically controlled spectral-band selective terahertz (THz) modulators based on metal-organic hybrid metamaterials were investigated. An artificially…”
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18
Characteristics of terahertz wave modulation using wavelength-selective photoexcitation in pentacene/Si and TIPS pentacene/Si bilayers
Published in AIP advances (01-11-2016)“…We demonstrate the characteristics of the optical control of terahertz (THz) wave transmission in photoexcited bilayers of pentacene/Si and…”
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19
Characteristics of multi-mode resonances in T-shape air slots
Published in AIP advances (01-04-2015)“…We investigate the characteristics of multi-mode resonances in T-shape air slots at terahertz frequencies. Our results show that the multimode resonance is…”
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20
Mechanisms of high refractive index properties in fish-bone shape structures
Published in 2015 11th Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR) (01-08-2015)“…We demonstrated the subwavelength metamaterial structures with multiple three-dimensional subwavelength confinement and high effective-refractive-index of…”
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