Subwavelength waveguide for visible light

Rybczyński, J.; Kempa, Krzysztof; Herczyński, Andrzej; Wang, Y.; Naughton, Michael; Z, Ren; Huang, Zhongping; Cai, Dong; Giersig, Michael

doi:10.1063/1.2430400

Cited by 70 publications

(50 citation statements)

References 13 publications

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“…At higher frequencies, the dimensions of the coaxial waveguides must be reduced to accommodate the subwavelength limit, and so in the optical range, nanoscopically small coaxial waveguides (nanocoax) must be used. Such nanocoaxes have been recently fabricated [19], and shown [19][20][21] to propagate plasmon polaritons which, for frequencies sufficiently below the constituent metal plasma frequency(ies), closely resemble conventional TEM waveguide modes. Coupling of radiation to the nanocoax arrays is envisioned via antenna couplers.…”

mentioning

confidence: 99%

Discretely guided electromagnetic effective medium

Kempa

Wang

Ren

et al. 2008

Applied Physics Letters

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A material comprised of an array of subwavelength coaxial waveguides decomposes incident electromagnetic waves into spatially discrete wave components, propagates these components without frequency cut-off, and reassembles them on the far side of the material. The propagation of these wave components is fully controlled by the physical properties of the waveguides and their geometrical distribution in the array. This allows for an exceptional degree of control over the electromagnetic response of this effective medium, with numerous potential applications. With the development of nanoscale subwavelength coaxial waveguides, these applications (including metamaterial functionality) can be enabled in the visible frequency range.

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mentioning

confidence: 99%

Discretely guided electromagnetic effective medium

Kempa

Wang

Ren

et al. 2008

Applied Physics Letters

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“…The result is a visible light sub-diffraction waveguide that may also act as a nanoantenna by extrusion of the inner electrode [15]. Although loss is not quantified, it is estimated that the propagation length is 50 lm (0.086 dB/lm) owing to the coaxial technique, like that originating from Takahara, which enables higher propagation through impedance matching.…”

Section: Metal Slot Waveguidesmentioning

confidence: 99%

Nanoscale waveguiding methods

Wang

Lin

2007

Nanoscale Res Lett

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While 32 nm lithography technology is on the horizon for integrated circuit (IC) fabrication, matching the pace for miniaturization with optics has been hampered by the diffraction limit. However, development of nanoscale components and guiding methods is burgeoning through advances in fabrication techniques and materials processing. As waveguiding presents the fundamental issue and cornerstone for ultra-high density photonic ICs, we examine the current state of methods in the field. Namely, plasmonic, metal slot and negative dielectric based waveguides as well as a few sub-micrometer techniques such as nanoribbons, high-index contrast and photonic crystals waveguides are investigated in terms of construction, transmission, and limitations. Furthermore, we discuss in detail quantum dot (QD) arrays as a gain-enabled and flexible means to transmit energy through straight paths and sharp bends. Modeling, fabrication and test results are provided and show that the QD waveguide may be effective as an alternate means to transfer light on sub-diffraction dimensions.

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“…Different types of CNT-based structures can be utilized for manufacturing of various integrated-circuit elements and electromagnetic devices, for example, transmission lines [1], interconnects [2], and nanoantennas [3,4]. Undoped WS 2 nanotubes exhibit semiconductor properties with a well-defined band gap and with direct or indirect transition, depending on chirality [5].…”

Section: Introductionmentioning

confidence: 99%

Electrical properties of carbon nanotubes/WS2 nanotubes (nanoparticles) hybrid films

Ксеневич¹,

Горбачук²,

Ho³

et al. 2016

Nanosystems: Phys. Chem. Math.

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DC and AC electrical properties of hybrid films, consisting of carbon nanotubes and tungsten disulfide nanotubes (and fullerene like nanoparticles) were studied within the 2 -300 K temperature range and over the 20 Hz -1 MHz frequency range. The temperature dependences of the resistance R(T) exhibit behavior typical for the fluctuation-induced tunneling model in the intermediate temperature range. Analysis of the dependences of real and imaginary components of the impedance on the frequency (Z'(f ) and Z"(f )) demonstrates the rising role of the contact barriers between carbon nanotubes inside hybrid films, consisting of the carbon nanotubes and inorganic tungsten disulfide nanotubes as the temperature was decreased. The active component of the impedance was found to prevail in the AC electrical properties of the hybrid films, consisting of multi-wall carbon nanotubes and WS 2 nanoparticles over the entire available temperature range.

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Subwavelength waveguide for visible light

Cited by 70 publications

References 13 publications

Discretely guided electromagnetic effective medium

Discretely guided electromagnetic effective medium

Nanoscale waveguiding methods

Electrical properties of carbon nanotubes/WS2 nanotubes (nanoparticles) hybrid films

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