Z
Zhanghua Han
Researcher at Shandong Normal University
Publications - 127
Citations - 4283
Zhanghua Han is an academic researcher from Shandong Normal University. The author has contributed to research in topics: Terahertz radiation & Plasmon. The author has an hindex of 26, co-authored 102 publications receiving 3691 citations. Previous affiliations of Zhanghua Han include University of Alberta & City University of Hong Kong.
Papers
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Journal ArticleDOI
Novel surface plasmon waveguide for high integration
Liu Liu,Zhanghua Han,Sailing He +2 more
TL;DR: A novel surface plasmon waveguide structure is proposed for highly integrated planar lightwave circuits by etching a small trench through a metallic thin film on a silica substrate, a guided mode with highly confined light fields is realized.
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Surface Plasmon Bragg Gratings Formed in Metal-Insulator-Metal Waveguides
TL;DR: In this paper, surface plasmon Bragg gratings formed by a periodic variation of the width of the insulator in a metal-insulator-metal waveguide were numerically analyzed.
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Plasmonic black gold by adiabatic nanofocusing and absorption of light in ultra-sharp convex grooves
Thomas Søndergaard,Sergey M. Novikov,Tobias Holmgaard,René Lynge Eriksen,Jonas Beermann,Zhanghua Han,Kjeld Møller Pedersen,Sergey I. Bozhevolnyi +7 more
TL;DR: It is demonstrated experimentally that two-dimensional arrays of sharp convex grooves in gold ensure efficient (>87%) broadband (450-850 nm) absorption of unpolarized light, reaching an average level of 96%.
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Radiation guiding with surface plasmon polaritons
TL;DR: Various SPP-based waveguide configurations that ensure two-dimensional mode confinement in the plane perpendicular to the propagation direction are described and compared, concluding with an outlook on challenges and possible future developments in this field.
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Plasmon-induced transparency with detuned ultracompact Fabry-Perot resonators in integrated plasmonic devices.
TL;DR: Numerical results show that MIM components exhibiting pronounced EIT-like spectra in near infrared with the footprint of < 0.15 μm2 and group index of ~26 can be designed.