Search Results - "Ahn, Jung Tae"

Sensitivity enhancement of ultraviolet sensors utilizing 80-μm-diameter fiber Bragg gratings coated with azobenzene polymer by Kang, Hanmam, Ko, Youngmin, Moon, Jongju, Seo, Jungmin, Ahn, Tae-Jung

“…This study presents an advanced fiber Bragg grating (FBG) ultraviolet (UV) sensor utilizing an 80-μm single mode fiber (SMF) with a UV-reactive azobenzene…”
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Fiber-Optic Measurement of Liquid Evaporation Dynamics Using Signal Processing by Lim, Ok-Rak, Ahn, Tae-Jung

“…An evaporation rate measurement method based on multiple reflection interference using a simple fiber optic configuration is proposed in this study. The…”
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Distributed UV Light Sensor Probe Based on Photo-Responsive Polymer Coated Optical Fiber by Ahn, Tae-Jung, Seo, Gyeong-Seo, Lim, Ok-Rak

“…A novel distributed ultraviolet (UV) light sensor based on a functional polymer-coated optical fiber is proposed. An azobenzene polymer was prepared by mixing…”
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UV Sensor Based on Photomechanically Functional Polymer-Coated FBG by Kim, Hyun-Kyoung, Shin, Woojin, Ahn, Tae-Jung

“…A simple ultraviolet (UV) sensor based on a photomechanical responsible material (azobenzene moiety) and a typical fiber Bragg grating (FBG) has been proposed…”
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Ultrarapid Optical Frequency-Domain Reflectometry Based Upon Dispersion-Induced Time Stretching: Principle and Applications by Tae-Jung Ahn, Yongwoo Park, Azaña, J.

“…This paper reviews recent progress on a new, simple, and powerful technique for ultrahigh-speed optical frequency-domain reflectometry (OFDR), namely,…”
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Synchronized Generation of Reconfigurable Microwave Sinusoidal Wave Packets From a Free-Running Pulsed Laser by Yongwoo Park, Tae-Jung Ahn, Fangxin Li, Azana, J.

“…Generation of customized microwave sinusoidal wave packets precisely synchronized with a free-running pulsed laser is required for many electrooptic…”
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Improved Optical Pulse Characterization Based on Feedback-Controlled Hilbert Transformation Temporal Interferometry by Ahn, Tae-Jung, Park, Yongwoo, Azana, Jose

“…We propose an accurate ultrashort optical pulse reconstruction method based on Hilbert transform temporal interferometry with a feedback control technique. The…”
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Real-time monitoring of concrete curing using fiber Bragg grating sensors: Strain and temperature measurement by Jo, Hye Jin, Park, Dong Young, Kim, Kyung Won, Ahn, Tae-Jung

“…This study presents a novel method for building health monitoring using fiber Bragg grating (FBG) sensors in the concrete curing process. These sensors,…”
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Optical frequency-domain chromatic dispersion measurement method for higher-order modes in an optical fiber by Ahn, Tae-Jung, Jung, Yongmin, Oh, Kyunghwan, Kim, Dug Young

“…We propose a new chromatic dispersion measurement method for the higher-order modes of an optical fiber using optical frequency modulated continuous-wave…”
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Nondestructive volumetric optical analysis of corroded copper oxidation using 1700nm swept-source optical coherence microscopy by Ko, Young-Min, Kang, Chang-Min, Lee, Yong-Jae, Jang, Hee-Jin, Ahn, Tae-Jung, Eom, Tae Joong

“…This study presents a novel nondestructive analysis method for precise characterization of corroded copper oxidation using optical coherence microscopy (OCM)…”
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Distributed Ultraviolet Sensor Based on Brillouin Optical Correlation-Domain Analysis Using An Azobenzene Polymer-Coated Optical Fiber by Hong, Jun Gi, Ahn, Tae-Jung, Song, Kwang-Yong

“…A distributed ultraviolet sensor based on Brillouin scattering in an azobenzene polymer-coated optical fiber is experimentally demonstrated. A Brillouin…”
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Photonic temporal integrator for all-optical computing by Slavík, Radan, Park, Yongwoo, Ayotte, Nicolas, Doucet, Serge, Ahn, Tae-Jung, LaRochelle, Sophie, Azaña, José

“…We report the first experimental realization of an all-optical temporal integrator. The integrator is implemented using an all-fiber active (gain-assisted)…”
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25-terahertz-bandwidth all-optical temporal differentiator by Li, Ming, Jeong, Hoe-Seok, Azaña, José, Ahn, Tae-Jung

“…An all-optical temporal differentiator with a record operation bandwidth of ~25 THz (~200 nm, at least one order of magnitude larger than any previously…”
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Wavelength-selective directional couplers as ultrafast optical differentiators by Ahn, Tae-Jung, Azaña, José

“…Wavelength-selective directional couplers with dissimilar waveguides are designed for ultrafast optical differentiation within the femtosecond regime…”
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Dorsal plating versus volar plating with limited dorsal open reduction in the management of AO type C3 distal radius fractures with impacted articular fragments: A retrospective comparative study by Lee, Jae Hoon, Ahn, Jung Tae, Baek, Jong Hun

“…The aim of this study was to compare the outcomes of dorsal plating versus volar plating with limited dorsal open reduction in the management of AO type C3…”
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All-optical temporal integration of ultrafast pulse waveforms by Park, Yongwoo, Ahn, Tae-Jung, Dai, Yitang, Yao, Jianping, Azaña, José

“…An ultrafast all-optical temporal integrator is experimentally demonstrated. The demonstrated integrator is based on a very simple and practical solution only…”
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Highly sensitive and fast UV sensor based on fiber grating with easily producible photoreactive material by Seo, Gyeong-Seo, Cho, Hee-Taek, Lim, Ok-Rak, Ahn, Tae-Jung

“…•Azobenzene polymers improved fiber Bragg grating sensor ultraviolet sensitivity.•Sensitivity of fiber Bragg grating sensor related to hardness of coating…”
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A subset of enteroendocrine cells is activated by amino acids in the Drosophila midgut by Park, Jeong‐Ho, Chen, Ji, Jang, Sooin, Ahn, Tae Jung, Kang, KyeongJin, Choi, Min Sung, Kwon, Jae Young, Mantei, Ned

“…The intestine is involved in digestion and absorption, as well as the regulation of metabolism upon sensation of the internal intestinal environment…”
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Radiologic Comparison of Humeral Position according to the Implant Designs Following Reverse Shoulder Arthroplasty: Analysis between Medial Glenoid/Medial Humerus, Lateral Glenoid/Medial Humerus, and Medial Glenoid/Lateral Humerus Designs by Cho, Nam Su, Nam, Ju Hyun, Hong, Se Jung, Kim, Tae Wook, Lee, Myeong Gu, Ahn, Jung Tae, Rhee, Yong Girl

“…Background: The currently available reverse shoulder arthroplasty (RSA) designs can be classified into medial glenoid/medial humerus (MGMH), lateral…”
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Highly sensitive strain and bending sensor based on in-line fiber Mach–Zehnder interferometer in solid core large mode area photonic crystal fiber by Shin, Woojin, Lee, Yeung Lak, Yu, Bong-Ahn, Noh, Young-Chul, Ahn, Tae Jung

“…We have proposed highly sensitive strain and bending sensor with very low temperature sensitivity based on in-line Mach–Zehnder interferometer (MZI) in solid…”
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