Search Results - "Seo, Hong Seok"

Spectrally combined three-diode-pumped compact femtosecond Ti:sapphire laser exceeding 1 W mode-locked power by Song, Dong Hoon, Seo, Hong-Seok

“…The achievement of a high average power exceeding 1 W remains a major challenge for direct-diode pumped and mode-locked femtosecond Ti:sapphire lasers. Herein,…”
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Efficacy and Safety of Morning Versus Evening Dose of Controlled-Release Simvastatin Tablets in Patients With Hyperlipidemia: A Randomized, Double-Blind, Multicenter Phase III Trial by Kim, Sang-Hyun, MD, PhD, Kim, Min-Kyung, MD, Seo, Hong-Seok, MD, PhD, Hyun, Min-Soo, MD, PhD, Han, Kyoo-Rok, MD, PhD, Cho, Seong-Wook, MD, PhD, Kim, Young-Kwon, MD, PhD, Hoon Park, Seong, MD, PhD

“…Abstract Background Flexibility in the recommended dosing time for a statin may improve patient compliance. Objective This study was designed to compare the…”
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Spectrally combined four-diode-pumped femtosecond Ti:sapphire laser with 16.3 nJ pulse and its application to video-rate coherent anti-Stokes Raman scattering spectro-microscopy by Song, Dong Hoon, Huh, Chul, Seo, Hong-Seok

“…We demonstrate the generation of high-energy femtosecond pulses by a spectrally combined four-diode-pumped Ti:sapphire laser with semi-conductor saturable…”
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A periodic array of silicon pillars fabricated by photoelectrochemical etching by Li, Xiaopeng, Seo, Hong-Seok, Um, Han-Don, Jee, Sang-Won, Cho, Yong Woo, Yoo, Bongyoung, Lee, Jung-Ho

“…A periodic array of silicon pillars was photoelectrochemically fabricated using the two-step etching process with a n-type Si (1 0 0) substrate. Two key…”
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Fabrication of 4 × 1 signal combiner for high-power lasers using hydrofluoric acid by Choi, In Seok, Park, Jongseon, Jeong, Hoon, Kim, Ji Won, Jeon, Min Yong, Seo, Hong-Seok

“…We report a new method to fabricate a 4 × 1 signal combiner that comprises an output fiber port and a tapered fused bundle (TFB) with four input fiber ports…”
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Low-Noise Fiber Raman Amplifiers Based on a Raman Ring Fiber Oscillator by Ahn, Joon Tae, Seo, Hong-Seok, Park, Bong Je, Chung, Woon Jin, Kim, Kyong Hon

“…We propose two discrete fiber Raman amplifier schemes using Raman ring fiber oscillator, a two-stage scheme, and a forward pumping scheme, to reduce double…”
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Fabrication of precisely controlled silicon wire and cone arrays by electrochemical etching by Seo, Hong-Seok, Li, Xiaopeng, Um, Han-Don, Yoo, Bongyoung, Kim, Jae-Hyun, Kim, Kang-Pil, Cho, Yong Woo, Lee, Jung-Ho

“…There is an exponentially growing need for well-oriented, vertical silicon nano/micro-structure arrays, particularly in high-density integrated electronic…”
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Spectrally Combined Diodes-Pumped Femtosecond Ti:Sapphire Lasers and its Application to Two-Photon & Coherent Anti-Stokes Raman Scattering Microscopy by Song, Dong Hoon, Huh, Chul, Seo, Hong-Seok

“…Femtosecond lasers made of Ti:sapphire crystals(Ti:S) with broad gain bandwidths have become key technologies in a wide variety of applications, such as…”
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Efficient Pump Beam Multiplexer Based on Single-Mode Fibers by Seo, Hong-Seok, Ahn, Joon Tae, Park, Bong Je, Song, Jung-Ho, Chung, Woonjin

“…An efficient pump beam combining technique using single-mode fibers was introduced. Well-defined modes formed from a single-mode fiber bundle were efficiently…”
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Characterization of an ASE reflector-based gain-clamped erbium-doped fiber amplifier by Joon Tae Ahn, Joon Tae Ahn, Hong-Seok Seo, Hong-Seok Seo, Woon Jin Chung, Woon Jin Chung, Bong Je Park, Bong Je Park, Kyong Hon Kim, Kyong Hon Kim

“…We develop a simulation tool for an all-optical gain-clamped erbium-doped fiber amplifier (GC-EDFA) based on an amplified spontaneous emission (ASE) reflector…”
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ASE reflector-based gain-clamped erbium-doped fiber amplifier using an optical interleaver by Joon Tae Ahn, Joon Tae Ahn, Hong-Seok Seo, Hong-Seok Seo, Woon Jin Chung, Woon Jin Chung, Bong Je Park, Bong Je Park, Kyong Hon Kim, Kyong Hon Kim

“…We use a 50-GHz optical interleaver for the reflection of amplified spontaneous emission (ASE) to realize ASE reflector-based gain-clamped erbium-doped fiber…”
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Electrically controllable long-period liquid crystal fiber gratings by Jeong, Yoonchan, Yang, Byungchoon, Lee, Byoungho, Seo, Hong Seok, Choi, Sangsoo, Oh, Kyunghwan

“…An electrically controllable fiber-optic filter for broad-band rejection has been demonstrated by periodically poling a liquid-crystalline core in a…”
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Effects of the Weak Absorption Tail on the Transmission Loss of Ge-Sb-Se Optical Fibers by Jin Chung, Woon, Je Park, Bong, Seok Seo, Hong, Tae Ahn, Joon, Lee, Myung-Hyun, Choi, Yong Gyu

“…Selenide glass optical fibers were fabricated for Ge30Sb10Se58S2 and Ge20Sb10Se70 glasses. Their transmission loss has been measured and compared with the…”
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Results of a phase III, 8-week, multicenter, prospective, randomized, double-blind, parallel-group clinical trial to assess the effects of amlodipine camsylate versus amlodipine besylate in korean adults with mild to moderate hypertension by Kim, Sang-Hyun, MD, PhD, Kim, Young-Dae, MD, PhD, Lim, Do-Sun, MD, PhD, Yoon, Myeong-Ho, MD, PhD, Ahn, Young-Keun, MD, PhD, On, Young-Keun, MD, PhD, Lee, Je-Won, PhD, Kim, In-Jae, MD, PhD, Park, Jung-Bae, MD, PhD, Kim, Jae-Joong, MD, PhD, Chung, Wook-Sung, MD, PhD, Yang, Ju-Young, MD, PhD, Seo, Hong-Seok, MD, PhD, Shin, Eak-Kyun, MD, PhD, Kim, Hyo-Soo, MD, PhD

“…Abstract Background: Amlodipine besylate has been used in Korea for the treatment of hypertension for >17 years, with well-established efficacy and…”
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Elevated free fatty acid is associated with cardioembolic stroke subtype by Seo, Woo-Keun, Kim, Juyeon, Kim, Yoo Hwan, Kim, Ji Hyun, Oh, Kyungmi, Koh, Seong-Beom, Seo, Hong Seok

“…Free fatty acids (FFAs), an important energy substrate, have an association with cardiovascular diseases, such as atherosclerosis, myocardial dysfunction and…”
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Silicon Nanowire Array Solar Cell Prepared by Metal-Induced Electroless Etching with a Novel Processing Technology by Um, Han-Don, Jung, Jin-Young, Seo, Hong-Seok, Park, Kwang-Tae, Jee, Sang-Won, Moiz, S. A, Lee, Jung-Ho

“…We inexpensively fabricated vertically aligned Si nanowire solar cells using metal-induced electroless etching and a novel doping technique. Co-doping of boron…”
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High-resolution and a wide field-of-view eye-safe LiDAR based on a static unitary detector for low-SWaP applications by Han, Munhyun, Seo, Hong-Seok, Mheen, Bongki

“…High three-dimensional (3D) resolution for a wide field-of-view (FoV) is difficult in LiDARs because of the restrictions concerning size, weight, and power…”
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Compositionally bilayered feature of interfacial voids in a porous anodic alumina template directly formed on Si by Seo, Hong-Seok, Jung, Yang-Gyoo, Jee, Sang-Won, Yang, Jun Mo, Lee, Jung-Ho

“…Preparation of a porous anodic alumina (PAA) template, directly formed on Si, is known to form the nanosized interfacial voids between the alumina film and Si…”
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Successive nucleation and a rodlike growth of SiOx nanoparticles into the pore bottoms of an anodic alumina template by Jee, Sang-Won, Jung, Jin-Young, Seo, Hong-Seok, Park, Kwang-Tae, Das, Nando Dulal, Chai, Young Gyu, Lee, Jung-Ho

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The Influence of Coronary Dominance on Coronary Atherosclerosis and Distribution of Coronary Artery Disease in Korean by Kim, Seong Hwan, Kim, Jin Won, Rha, Seung Woon, Park, Chang Gyu, Seo, Hong Seok, Oh, Dong Joo

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