THz wave hollow waveguide with ferroelectric PVDF polymer as the cladding material

Hidaka, Takehiko; Morohashi, Isao; Komori, Kana; Nakagawa, Heisaburo; Ito, Hiroto

doi:10.1109/cleoe.2000.910024

Cited by 4 publications

(4 citation statements)

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“…This results in an imaginary refractive index like that in metals. With an imaginary refractive index, the material shows complete reflection like metals (close to unity) for both TM and TE polarization from 1 to 2 THz [86,87].…”

Section: Hollow-core Waveguides/fibersmentioning

confidence: 99%

Terahertz dielectric waveguides

et al. 2013

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Several classes of non-planar metallic and dielectric waveguides have been proposed in the literature for guidance of terahertz (THz) or Tray radiation. In this review, we focus on the development of dielectric waveguides, in the THz regime, with reduced loss and dispersion. First, we examine different THz spectroscopy configurations and fundamental equations employed for characterization of THz waveguides. Then we divide THz dielectric waveguides into three classes: solid-core, hollow-core, and porous-core waveguides. The guiding mechanism, fabrication steps, measured loss, and dispersion are presented for the waveguides in each class in chronological order. The goal of this review is to compare and contrast the current solutions for guiding THz radiation.

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Section: Hollow-core Waveguides/fibersmentioning

confidence: 99%

Terahertz dielectric waveguides

et al. 2013

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“…Some examples are, hollow-core with a periodic microstructured cladding [189], a hollow-core kagome structure [190], and a hollowcore with tube-lattice cladding [191]. Similar to a metallic WG, single clad plastic fiber for THz guidance is also proposed by Hidaka et al [58], [192], where they have used a PVDF tube to guide the THz mode inside the air core. Recently, a hollow-core fiber with two and four em etal (Indium summariz uided dielectric fibers for THz wave.…”

Section: Optical Fibers For Thz Transmissionmentioning

confidence: 99%

“…Since, it itself forms a vast domain, we concentrate mostly on optical waveguide (OWG) based THz sources and low-loss transmission systems. Research on OWG-based applications began around 2000 [56]- [58]. Among various OWG platforms, optical fibers are most attractive for day-to-day applications, which include high power lasers, long distance transmission, medical endoscopy, sensing etc.…”

mentioning

confidence: 99%

Specialty Fibers for Terahertz Generation and Transmission: A Review

Barh

Pal

Agrawal

et al. 2016

IEEE J. Select. Topics Quantum Electron.

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Abstract-Terahertz (THz) frequency range, lying between the optical and microwave range covers a significant portion of the electro-magnetic spectrum. Though its initial usage started in the 1960s, active research in the THz field started only in the 1990s by researchers from both optics and microwaves disciplines. The use of optical fibers for THz application has attracted considerable attention in recent years. In this article, we review the progress and current status of optical fiber-based techniques for THz generation and transmission. The first part of this review focuses on THz sources. After a review on various types of THz sources, we discuss how specialty optical fibers can be used for THz generation. The second part of this review focuses on the guided wave propagation of THz waves for their transmission. After discussing various wave guiding schemes, we consider new fiber designs for THz transmission.

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“…During the past few decades, many researchers attempted to development the dual goal of low loss and smaller-sized THz waveguides. Examples include dielectric waveguides [13]- [17], metallic waveguides [18]- [21] and plasmonic waveguides [22], [23]; these structures have all been theoretically proposed or experimentally demonstrated. Among the wide variety of THz waveguide structures being investigated, plasmonic structures can achieve a better tradeoff between propagation length and confinement capacity.…”

Section: Introductionmentioning

confidence: 99%

Hybrid Plasmonics Slot THz Waveguide for Subwavelength Field Confinement and Crosstalk Between Two Waveguides

Xiao

Wei

Yang

et al. 2017

IEEE J. Select. Topics Quantum Electron.

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Abstract-The slot waveguide has attracted considerable attention because of its ability to confine and guide electromagnetic energy at the subwavelength scale beyond the diffraction limit. We propose a novel terahertz slot waveguide structure to achieve a better tradeoff between propagation length and field confinement capacity, the novel waveguide consisting of a two slot structure. The performances of terahertz waveguides were investigated using the finite-element method. The results demonstrated that the hybrid slot waveguide (HSW) provides significantly enhanced field confinement in low index slot regions: more than five times that of traditional low index slot waveguides (LISWs). An optimized HSW structure was achieved by tuning the tradeoff between mode confinement and propagation length. We also showed that its integration in conventional planar waveguide circuits was greatly improved compared with the LISWs, by comparing their crosstalk. The proposed new HSW structure has great potential to enable THz production of compact integration and could lead to true semiconductor-basedTHz applications with high performance.

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THz wave hollow waveguide with ferroelectric PVDF polymer as the cladding material

Cited by 4 publications

References 1 publication

Terahertz dielectric waveguides

Terahertz dielectric waveguides

Specialty Fibers for Terahertz Generation and Transmission: A Review

Hybrid Plasmonics Slot THz Waveguide for Subwavelength Field Confinement and Crosstalk Between Two Waveguides

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