Ru-Wen Peng

Construction of a chiral metamaterial with a U-shaped resonator assembly

In an assembly of double-layered metallic U-shaped resonators with two resonant frequencies

Symmetry-induced perfect transmission of light waves in quasiperiodic dielectric multilayers

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Structured Metal Film as a Perfect Absorber

and

Freely Tunable Broadband Polarization Rotator for Terahertz Waves

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Charge-oscillation-induced light transmission through subwavelength slits and holes

, the effective induced electric and magnetic dipoles, which originate from the specific distribution of induced surface electric current upon the illumination of incident light, are collinear at the same frequency. Consequently, for left circularly polarized incident light, negative refractive index occurs at

Broadband absorption and efficiency enhancement of an ultra-thin silicon solar cell with a plasmonic fractal

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Surface-plasmon-enhanced transmission through metallic film perforated with fractal-featured aperture array

, whereas for right circularly polarized incident light it occurs at

Transparent Metals for Ultrabroadband Electromagnetic Waves

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Position-sensitive spectral splitting with a plasmonic nanowire on silicon chip

. We suggest that this design provides a new example to apply chiral structures to tune the electromagnetic properties, and could be enlightening in exploring chiral metamaterials.

Plasmonic antenna array at optical frequency made by nanoapertures

Resonant transmission of light has been observed in symmetric Fibonacci TiO2/SiO2 multilayers, which is characterized by many perfect transmission peaks. The perfect transmission dramatically decreases when the mirror symmetry in the multilayer structure is deliberately disrupted. Actually, the feature of perfect transmission peaks can be considered as general evidence for dielectric multilayers with symmetric internal structure. It opens a unique way to control light propagation.