A5021846302- Photonic and Optical Devices
- Advanced Fiber Laser Technologies
- Plasmonic and Surface Plasmon Research
- Optical Network Technologies
- Advanced biosensing and bioanalysis techniques
- Advanced Nanomaterials in Catalysis
- Semiconductor Lasers and Optical Devices
- Gold and Silver Nanoparticles Synthesis and Applications
- Laser-Matter Interactions and Applications
- Biosensors and Analytical Detection
- Nanocluster Synthesis and Applications
- Carbon and Quantum Dots Applications
- Analytical Chemistry and Sensors
- Gas Sensing Nanomaterials and Sensors
- Advanced Optical Imaging Technologies
- Advanced Biosensing Techniques and Applications
- Electrical and Thermal Properties of Materials
- Photonic Crystals and Applications
- Advanced Photocatalysis Techniques
- Ferroelectric and Piezoelectric Materials
- Semiconductor Quantum Structures and Devices
- Advanced Photonic Communication Systems
- Advanced Fiber Optic Sensors
- Mechanical and Optical Resonators
- Transition Metal Oxide Nanomaterials
Gachon University
2016-2025
Guizhou University
2024
Robert Bosch (Germany)
2021
Seonam University
2018-2020
Government of the Republic of Korea
2020
Deleted Institution
2015-2018
BioNano Genomics (United States)
2018
Kyungdong University
2007-2011
Hanyang University
2006-2007
Eindhoven University of Technology
2004-2006
Abstract Plasmonic enhancement of fluorescence from SYBR Green I conjugated with a double‐stranded DNA (dsDNA) amplicon is demonstrated on polymerase chain reaction (PCR) products. Theoretical computation leads to use the bimetallic (Au 2 nm–Ag 50 nm) surface plasmons due larger local fields (higher quality factors) than monometallic (Ag or Au) ones at both dye excitation and emission wavelengths simultaneously, optimizing plasmon coupled (SPCE). Two kinds reverse Kretschmann configurations...
The development of improved methods for the synthesis monodisperse gold nanoparticles (Au NPs) is high priority because they can be used as substrates surface-enhanced Raman scattering (SERS) applications relating to biological lipids. Herein, Au NPs have been successfully synthesized via a seed-mediated growth method. LSPR peak controlled adjusting nanoseed component, and different fabrication were studied establish effect sonication time on NP size. simple, facile, room-temperature method...
We reported the fluorescence sensor of carbon dots (CDs) synthesized for highly sensitive and selective detection bilirubin in human urine. High-resolution transmission electron microscopy (HRTEM) images showed that CDs have a spherical shape with mean particle size 2.6 nm. The fluorescent emission, which peaked at wavelength 511 nm under excitation 435 CDs' emission intensity reduced increasing concentration, was ascribed to strong inner filter effect (IFE). excellent spectral match between...
A simple all-optical logic device, composed of an SOA and optical filter, is proposed. By utilising filtering, multi-logic functions (AND, OR XOR) are demonstrated at 10 Gbit/s using the same setup, under different operation conditions. Simulations indicate that device can operate much higher bit rate.
We investigate nonlinear carrier dynamics in a multiquantum-well semiconductor optical amplifier (SOA) the context of ultrafast all-optical logic. A rate-equation model is presented that accounts for two-photon absorption, free-carrier self- and cross phase modulation, heating, spectral, spatial hole burning, polarization modulation. The refractive index investigated theoretically experimentally. find changes larger than /spl pi/ radians, which recovers on timescale order 1 ps. also AND gate...
We present the immunoassay of tau proteins (total and phosphorylated tau) in human sera using surface plasmon resonance (SPR) fiber sensors. This assay aimed at harvesting advantages both SPR sensors a blood-based to demonstrate label-free point-of-care-testing (POCT) patient-friendly compact format for early diagnosis Alzheimer's disease (AD). For conducting assay, we used 40 subjects divided into halves, which were grouped AD patients control groups according number neuropsychological...
Carbon dots (CDs) doped with heteroatoms have garnered significant interest due to their chemically modifiable luminescence properties. Herein, nitrogen- and sulfur-codoped carbon (NS-CDs) were successfully prepared using p-phenylenediamine thioacetamide via a facile process. The as-developed NS-CDs had high photostability against photobleaching, good water dispersibility, excitation-independent spectral emission properties the abundant amino sulfur functional groups on surface....
We present a image quality improvement in parallax barrier (PB)-based multiview autostereoscopic 3D display system under real-time tracking of positions viewer's eyes. The presented exploits engineered to offer significantly improved three-dimensional images for moving viewer without an eyewear the dynamic eye tracking. includes enhanced uniformity brightness, reduced point crosstalk, and no pseudoscopic effects. control relative ratio between two parameters i.e., pixel size aperture slit...
We investigate all-optical switching in a multi-quantum-well semiconductor optical amplifier-based nonlinear polarization switch using pulses with duration of 200 fs at central wavelength 1520 nm. show full recovery the within 600 fs, both gain and absorption regime. discuss mechanisms numerical simulations that are qualitatively good agreement our experimental data.
We present the regenerative label-free fiber optical biosensor that exploits surface plasmon resonance for quantitative detection of fibrinogen (Fbg) extracted from human blood plasma.The sensor head was made up a multimode with its polymer cladding replaced by metal composite nanometer thickness silver, aluminum, and nickel. The Ni layer coated allowed direct immobilization histidine-tagged peptide (HP) on without an additional cross-linker in between. On HP layer, immunoglobulin G then...
We presented synthesis and physical characterization of iron oxide magnetic nanoparticles (Fe 3 O 4 ) for biomedical applications in the size range 10-30 nm. Magnetic were synthesized by coprecipitation method, particles’ was controlled two different injection methods sodium hydroxide (NaOH). The then modified using series linkers including tetraethyl orthosilicate (TEOS), 3-aminopropyltriethoxysilane (APTES), glutaraldehyde (GA) to generate structure Fe /SiO 2 /NH /CHO, which can be used...