Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Hyong-Sik Won"'
Publikováno v:
Journal of Crystal Growth. 311:878-882
Eu 2+ -doped β -SiAlON microcrystals with compositions of Eu x Si 6− z Al z O z N 8− z ( x =0.016, z =0.1–2.0) were successfully fabricated by gas pressured reaction. The phase purity, microstructure, crystallinity and luminescent properties o
Autor:
Jeong Ho Ryu, Hideo Suzuki, Won Young Song, Sang Hyun Kim, Chulsoo Yoon, Hyong Sik Won, Youn-Gon Park
Publikováno v:
Applied Physics A. 95:747-752
Rare-earth-doped oxynitride or nitride compounds have been reported to be photoluminescent and may then serve as new phosphors because of their good thermal and chemical stabilities. In this work, Eu2+-doped β-SiAlON phosphor with a composition of E
Publikováno v:
Journal of the Ceramic Society of Japan. 116:389-394
β-SiAlON: Eu2+ oxynitride green phosphors with compositions of EuxSi6-zAlzOzN8-z (x=0.0065 -0.0390, z=0.231) were successfully prepared using GPS (gas pressured sintering) method. The phase purity, microstructure, luminescent and thermal quenching p
Publikováno v:
Korean Journal of Optics and Photonics. 17:371-380
We design and fabricate a novel tunable wavelength filter, which utilizes long-range surface plasmon-polaritons excited along nm-thick-metal strips. A gold metal strip, with cm length, 20 nm thickness, and 5m width, is embedded in thick thermo-optic
Publikováno v:
Journal of the Optical Society of Korea. 8:6-12
Diffraction Bragg gratings consisting of metal (silver) nanoparticles are generated inside a soda-lime glass substrate. After ion-exchanging and annealing processes in the glass, the silver nanoparticles are first formed with the particle diameters o
Publikováno v:
Japanese Journal of Applied Physics. 46:6673-6675
The light extraction efficiency of side-view light-emitting diodes (LEDs) with a textured encapsulant top surface is analyzed theoretically and experimentally. A prism-type textured surface is proposed in order to increase the extraction efficiency,
Publikováno v:
SPIE Proceedings.
We propose a polymeric variable optical attenuator based on long range surface plasmon polaritons (LRSPPs) along a thin metal stripe embedded in polymers. The device is operated by controlling radiation loss of the LRSPP mode resulting from the tempe
Autor:
Suntak Park, Hyong Sik Won, Jae Woong Yoon, Myoung Jin Jung, Jung Jin Ju, Seok Ho Song, Yang Hyun Joo
Publikováno v:
Applied Physics Letters. 92:161103
An asymmetric double-electrode structure composed of metal strips separated by a dielectric core layer, all on a metal slab, is proposed as a long-range surface plasmon-polariton (LR-SPP) waveguide. LR-SPP modes on asymmetric structures, including st
Autor:
Sang-Hyun Kim, Mihail Nazarov, Hideo Suzuki, Do Young Noh, Youn-Gon Park, Boris Tsukerblat, Chulsoo Yoon, Hyong Sik Won, Jong Myeon Lee, Jeong Ho Ryu
Publikováno v:
Journal of The Electrochemical Society. 155:J99
Rare-earth-doped oxynitride or nitride compounds have been reported to be photoluminescent and may then serve as new phosphors with good thermal and chemical stabilities. In this work, Ca-α-SiAlON:Eu 2+ based yellow and orange oxynitride phosphors w
Autor:
Ki Cheol Kim, Pill Soo Kim, Sang In Kim, Seok Ho Song, Hyong Sik Won, Cha-Hwan Oh, Suntak Park
Publikováno v:
Applied Physics Letters. 88:011110
We evaluated and demonstrated strong vertical-coupling characteristics of vertical directional couplers based on long-range surface plasmon polaritons (LRSPPs) at 1.55μm wavelength. Fundamental even and odd modes supported by LRSPP metal-stripe wave