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Near-field Holographic Retrieval of an Isolated Subwavelength Hole in a Thin Metallic Film
Jun Xu, Hyungjin Ma, Nicholas X. Fang
Using a holographic approach, we experimentally study the near-field intensity distribution of light squeezed through an isolated subwavelength plasmonic hole in a thin metallic fi…
Optical Curtain Effect: Extraordinary Optical Transmission Enhanced by Antireflection
Yanxia Cui, Jun Xu, Yinyue Lin +4
In this paper, we employ an antireflective coating which comprises of inverted pi shaped metallic grooves to manipulate the behaviour of a TM-polarized plane wave transmitted throu…
Ultra-broadband Light Absorption by a Sawtooth Anisotropic Metamaterial Slab
Yanxia Cui, Kin Hung Fung, Jun Xu +4
We present an ultra broadband thin-film infrared absorber made of saw-toothed anisotropic metamaterial. Absorbtivity of higher than 95% at normal incidence is supported in a wide r…
A Thin Film Broadband Absorber Based on Multi-sized Nanoantennas
Yanxia Cui, Jun Xu, Kin Hung Fung +4
We experimentally demonstrate an infrared broadband absorber for TM polarized light based on an array of nanostrip antennas of several different sizes. The broadband property is du…
Thin Film Absorbers Based on Plasmonic Phase Resonances
Yanxia Cui, Kin Hung Fung, Jun Xu +2
We demonstrate an efficient double-layer light absorber by exciting plasmonic phase resonances. We show that the addition of grooves can cause mode splitting of the plasmonic waveg…
Plasmon Assisted Optical Curtains
Yanxia Cui, Jun Xu, Sailing He +1
We predict an optical curtain effect, i.e., formation of a spatially invariant light field as light emerges from a set of periodic metallic nano-objects. The underlying physical me…