Search Results - "Jeoung, S. C."

Terahertz electromagnetic wave transmission through random arrays of single rectangular holes and slits in thin metallic sheets by Lee, J W, Seo, M A, Kang, D H, Khim, K S, Jeoung, S C, Kim, D S

“…We report on the observation of terahertz transparency in random arrays of the single rectangular holes and slits with the areal coverage of only 12%. The…”
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Fourier-transform terahertz near-field imaging of one-dimensional slit arrays: mapping of electric-field-, magnetic-field-, and Poynting vectors by Seo, M A, Adam, A J L, Kang, J H, Lee, J W, Jeoung, S C, Park, Q H, Planken, P C M, Kim, D S

“…We present 2D measurements of the full THz electric field behind a sample consisting of multiple slits in a metal foil. Our measurements, which have a…”
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Terahertz transparency at Fabry-Perot resonances of periodic slit arrays in a metal plate: experiment and theory by Lee, J W, Seo, M A, Park, D J, Jeoung, S C, Park, Q H, Lienau, Ch, Kim, D S

“…We report on a perfect transmission in one-dimensional metallic structure using time-domain terahertz spectroscopy. Fabry-Perot resonance appearing in spectral…”
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The influence of substrate temperature on femtosecond laser micro-processing of silicon, stainless steel and glass by Yahng, J.S., Nam, J.R., Jeoung, S.C.

“…We report the influence of substrate temperature on femtosecond laser ablation of silicon, stainless steel, and glass. Remarkable decrease in surface roughness…”
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Invisible plasmonic meta-materials through impedance matching to vacuum by Lee, J W, Seo, M A, Sohn, J Y, Ahn, Y H, Kim, D S, Jeoung, S C, Lienau, Ch, Park, Q-Han

“…We report on perfect transmission in two-dimensional plasmonic matamaterials in the terahertz frequency range, in which zeroth order transmittance becomes…”
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Thickness determination with chemical identification of double-layered polymeric thin film by using multiplex CARS by Yahng, J.S., Jeoung, S.C.

“…By utilizing characteristic Coherent anti-Stokes Raman Scattering (CARS) spectra from different organic polymers of polystyrene (PS) and polymethylmethacrylate…”
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Silicon substrate temperature effects on surface roughness induced by ultrafast laser processing by Yahng, J.S., Jeoung, S.C.

“…We report the effect of substrate temperature ( T sub ) in the range 300–900 K on the surface roughness of silicon wafer resulted from femtosecond laser…”
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Fabry-Perot effects in THz time-domain spectroscopy of plasmonic band-gap structures by Lee, J. W., Seo, M. A., Kim, D. S., Jeoung, S. C., Lienau, Ch, Kang, J. H., Park, Q.-Han

“…Using terahertz time-domain spectroscopy, we study transmission in one-dimensional arrays of slits fabricated on metal plates by laser machining. The enhanced…”
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Shape resonance omni-directional terahertz filters with near-unity transmittance by Lee, J, Seo, M, Park, D, Kim, D, Jeoung, S, Lienau, Ch, Park, Q-Han, Planken, P

“…Terahertz transmission filters have been manufactured by perforating metal films with various geometric shapes using femtosecond laser machining. Two…”
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Nonlinear enhancement of femtosecond laser ablation efficiency by hybridization with nanosecond laser by Yahng, J S, Chon, B H, Kim, C H, Jeoung, S C, Kim, H R

“…Synchronization of femtosecond laser with nanosecond (~250 ns) laser results in a large enhancement in laser ablation efficiency of the Si wafer 12 times more…”
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Photophysical Properties of Long Rodlike Meso−Meso-Linked Zinc(II) Porphyrins Investigated by Time-Resolved Laser Spectroscopic Methods by KIM, Yong Hee, JEONG, Dae Hong, KIM, Dongho, JEOUNG, Sae Chae, CHO, Hyun Sun, KIM, Seong Keun, ARATANI, Naoki, OSUKA, Atsuhiro

“…The molecular design of directly meso-meso-linked porphyrin arrays as a new model of light-harvesting antenna as well as a molecular photonic wire was…”
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Photoluminescence Studies of Poly(2-fluoro-1,4-phenylene vinylene): Comparison with 1,4-Bis(2-fluorostyryl)-2-fluorobenzene, A Model Oligomer by Lee, J.I., Han, J.Y., Shim, H.K., Jeoung, S.C., Kim, D.

“…We report photoluminescence property of poly(2-fluoro-1,4-phenylene vinylene) (PFPV) comparing with that of poly(1,4-phenylene vinylene) (PPV). They were…”
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Mechano- and Electroluminescence of a Dissymmetric Hafnium Carborane Complex by Hong, E., Jang, H., Kim, Y., Jeoung, S. C., Do, Y.

“…The first example of a mechanoluminescent organometallic compound, the hafnium carborane complex depicted in the Figure, has been synthesized and investigated…”
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Lifetime enhancement of the exciton in a trapezoidal-type InGaN/GaN multi-quantum well structure by Kim, Keunjoo, Lee, Jeong Yong, Jeoung, Sae Chae

“…A trapezoidal InGaN/GaN multi-quantum well structure was grown by metal-organic chemical vapor deposition and the relaxed interface was compared to a…”
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Ultrafast optical probes of excited states in halogen substituted PPV derivatives by Eom, H.S., Jeoung, S.C., Kim, D., Lee, J.I., Shim, H.K., Kim, C.M., Yoon, C.S.

“…Photoexcitation dynamics of poly(1,4-phenylene vinylene) (PPV) and poly(2-fluoro-1,4-phenylene vinylene) (PFPV) were investigated. The femtosecond transient…”
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Genomic Survey and Biochemical Analysis of Recombinant Candidate Cyanobacteriochromes Reveals Enrichment for Near UV/Violet Sensors in the Halotolerant and Alkaliphilic Cyanobacterium Microcoleus IPPAS B353 by Cho, Sung Mi, Jeoung, Sae Chae, Song, Ji-Young, Kupriyanova, Elena V., Pronina, Natalia A., Lee, Bong-Woo, Jo, Seong-Whan, Park, Beom-Seok, Choi, Sang-Bong, Song, Ji-Joon, Park, Youn-Il

“…Cyanobacteriochromes (CBCRs), which are exclusive to and widespread among cyanobacteria, are photoproteins that sense the entire range of near-UV and visible…”
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Ultrafast Energy-Transfer Dynamics between Block Copolymer and π-Conjugated Polymer Chains in Blended Polymeric Systems by Kim, Yong Hee, Kim, Dongho, Jeoung, Sae Chae, Han, Ja-Young, Jang, Min-Sik, Shim, Hong-Ku

“…The blending of polymers has been conventionally employed to increase the quantum efficiencies of polymeric electroluminescence (EL) devices via the energy…”
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Time-Resolved Photoluminescence Study of Poly(p-phenylenevinylene) Derivative Polymers by Kim, Yong Hee, Jeoung, Sae Chae, Kim, Dongho, Chung, Sung-Jae, Jin, Jung-Il

“…We present the steady-state and time-resolved photoluminescence (PL) spectra of poly(p-phenylenevinylene)derivatives, which exhibit a marked dependence on the…”
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Formation of photoluminescent germanium nanostructures by femtosecond laser processing on bulk germanium: role of ambient gases by Seo, M A, Kim, D S, Kim, H S, Choi, D S, Jeoung, Sae Chae

“…We present preparation of Ge nanostructures formed using by femtosecond laser pulse and origin of visible photoluminescence (PL) properties. High intensity of…”
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Temperature Dependence of Ultrafast Laser Ablation Efficiency of Crystalline Silicon by Yahng, J.S., Jeoung, S.C.

“…Ultrafast laser ablation of crystalline silicon was investigated as a function of temperature. The ablation efficiency is slightly enhanced with an apparent…”
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