H
Hoi Sing Kwok
Researcher at Hong Kong University of Science and Technology
Publications - 1207
Citations - 32982
Hoi Sing Kwok is an academic researcher from Hong Kong University of Science and Technology. The author has contributed to research in topics: Liquid crystal & Thin-film transistor. The author has an hindex of 77, co-authored 1165 publications receiving 29448 citations. Previous affiliations of Hoi Sing Kwok include University of Hong Kong & University of California, Berkeley.
Papers
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60.1: Optical Rewritable Electronic Paper with Fluorescent Dye Doped Liquid Crystal
TL;DR: Improvement of both dark and bright states of reflective ORW e‐paper is reported by doping LC with fluorescent dye, which absorb blue light & emit in green with high efficiency.
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Enhanced transmission in CO(2)-laser-aerosol interactions.
TL;DR: It is found that before the onset of plasma formation there is a sizable range of laser intensity where the medium becomes almost totally transparent, which may have applications in laser atmospheric propagation.
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Surface-plasmon-enhanced photoluminescence from metal-capped Alq3 thin Films
TL;DR: In this article, an integrating sphere was used to measure surface-plasmon-enhanced photoluminescence from Au capped Alq3 films using an integrating circle.
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Picosecond Photoresponse in Y-Ba-Cu-O Ultrathin Films
Lei Shi,Guolin Huang,Chris Lehane,Donghwan Kim,Hoi Sing Kwok,Jacek Swiatkiewicz,Gen C. Xu,Paras N. Prasad +7 more
TL;DR: The phonon-trapping effect has been verified to be the major limiting mechanism in the quasiparticle (QP) relaxation process and a systematic trend in the superconductivity decay time as a function of film thickness was obtained.
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P‐104: Aligning Layers Using Azo Dye Derivatives for Liquid Crystal Devices
Hirokazu Takada,Hidenari Akiyama,Haruyoshi Takatsu,Vladimir G. Chigrinov,Elena K. Prudnikova,Vladimir Kozenkov,Hoi Sing Kwok +6 more
TL;DR: The photo-induced alignment of an azo dye film and liquid crystal alignment on it are discussed for the liquid crystal display applications in this paper, where it is shown that sulfo groups play an important role in the LC alignment on the film.