Teflon Photonic Crystal Fiber as Terahertz Waveguide

Goto, Masahiro; Quema, Alex; Takahashi, Hiroshi; Ono, Shingo; Sarukura, Nobuhiko

doi:10.1143/jjap.43.l317

Cited by 221 publications

(96 citation statements)

References 2 publications

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“…The conventional guiding structures exemplified by microstrips, coplanar striplines, and coplanar waveguides 4 are highly lossy and dispersive. However, so far the most promising dielectric waveguides have been the use of photonic crystal fibers at THz frequencies 5,6 and metal-coated guides 7 at THz frequencies. In this paper, various types of practical dielectric and metalcoated waveguides are evaluated, including their modal loss and dispersion, and design optimization of quantum cascade lasers, multimode interference coupler (MMI)-based power splitters, and narrow-band filters are also presented by using a full-vectorial H-field finite element method.…”

Section: Introductionmentioning

confidence: 99%

“…So far most of the photonic crystal fibers (PCFs) that have been considered have been fabricated from silica or non-silica glasses due to their low loss in the optical frequency range, but the material loss of silica is prohibitively high at THz frequencies. However, only recently, Han et al 5 have fabricated a PCF for THz using high-density polyethylene with modal loss values of 0.2 cm −1 , and Goto et al 6 have reported a PCF-like waveguide using Teflon tubes and filaments with loss values of 0.5 cm −1 , showing their potential. A typical PCF cross-section with a triangular array of holes is shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

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Characterization of low-loss waveguides and devices for terahertz radiation

et al. 2014

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This is the published version of the paper.This version of the publication may differ from the final published version. Abstract. A rigorous full-vectorial modal solution approach based on the finite element method is used to find the propagation properties of terahertz (THz) waveguides, such as photonic crystal fibers, quantum cascaded lasers, plasmonic waveguides, power splitters, and narrow-band filters. Design approaches to reduce the modal loss due to the material and leakage loss in photonic crystal fibers and in metal-coated hollow-glass plasmonic waveguides have also been considered. The plasmonic confinement and gain threshold of quantum cascaded lasers used as THz sources and the chromatic dispersion in plasmonic waveguides are also presented. Permanent repository link

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Characterization of low-loss waveguides and devices for terahertz radiation

et al. 2014

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“…The conventional guiding structures exemplified by microstrips, coplanar striplines and coplanar waveguides [4] are highly lossy and dispersive. However, so far the most promising dielectric waveguides have been the use of photonic crystal fibers at terahertz frequencies [5,6] and metal coated guides [7] at terahertz frequencies. In this paper, various types of practical dielectric and metal coated waveguides are evaluated and design optimization of Quantum Cascade Lasers, MMI-based power splitters and narrow-band filters are presented, by using full-vectorial finite element method [8].…”

Section: Introductionmentioning

confidence: 99%

Low-loss waveguides for THz guidance and devices

et al. 2013

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This is the published version of the paper.This version of the publication may differ from the final published version. Permanent ABSTRACTA rigorous full-vectorial modal solution approach based on the finite element method is used to find the propagation properties of THz waveguides. Design approaches are presented to reduce the modal loss. Design of several THz devices, including quantum cascade lasers, power splitters and narrow-band filters are also presented.

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“…Plastic, 2 metallic ribbon 3 waveguides and polymer PCF 4,5 have demonstrated THz guidance. The latter often utilize a 'drill and draw' 5,6 or 'stack and fuse' 4 technology in their fabrication.…”

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confidence: 99%

Ultra low bending loss equiangular spiral photonic crystal fibers in the terahertz regime

et al. 2012

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An Equiangular Spiral Photonic Crystal Fiber (ES-PCF) design in Topas® for use in the Terahertz regime is presented. The design shows ultra low bending loss and very low confinement loss compared to conventional Hexagonal PCF (H-PCF). The ES-PCF has excellent modal confinement properties, together with several parameters to allow the optimization of the performance over a range of important characteristics. A full vector Finite Element simulation has been used to characterize the design which can be fabricated by a range of techniques including extrusion and drilling

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Teflon Photonic Crystal Fiber as Terahertz Waveguide

Cited by 221 publications

References 2 publications

Characterization of low-loss waveguides and devices for terahertz radiation

Characterization of low-loss waveguides and devices for terahertz radiation

Low-loss waveguides for THz guidance and devices

Ultra low bending loss equiangular spiral photonic crystal fibers in the terahertz regime

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