Open Wire Lines

Goubau, G.

doi:10.1109/tmtt.1956.1125062

Cited by 63 publications

(32 citation statements)

References 13 publications

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“…The propagation around a dielectric-coated wire has been described by Goubau in 1950 [13]. Similar results are obtained with rectangular wires deposited on dielectric substrates called Planar Goubau Line (PGL) [14].…”

Section: Planar Goubau Linesupporting

confidence: 59%

Terahertz Spiral Planar Goubau Line Rejectors for Biological Characterization

Treizebré¹,

Hofman²,

Bocquet³

2010

PIER M

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Abstract-Terahertz spectroscopy brings precious complementary information in life science by probing directly low energy bindings inside matter. This property has been demonstrated on dehydrated substances, and interesting results are obtained on liquid solutions. The next step is the characterization of living cells.We have successfully integrated THz passive circuits inside Biological MicroElectroMechanical Systems (BioMEMS). They are based on metallic wires called Planar Goubau Line (PGL). We demonstrate that high THz measurement sensitivity can be reached with new design based on spirals. But we show that the principal interest of this design is its high spatial resolution below the wavelength size compatible with living cell investigation.

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Section: Planar Goubau Linesupporting

confidence: 59%

Terahertz Spiral Planar Goubau Line Rejectors for Biological Characterization

Treizebré¹,

Hofman²,

Bocquet³

2010

PIER M

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“…We observe a small improvement of the spatial resolution but the function of the coating is instead a best guiding of surface wave and a less environment susceptibility [10]. The way of the Planar Goubau Line (PGL) is a very interesting approach in the case of THz passive functions on integrated circuits.…”

Section: Planar Goubau Line (Pgl)mentioning

confidence: 94%

“…Electromagnetic surface wave modes have been first observed by A. Sommerfeld in 1899. In the 1950s, they have been studied in more details by Goubau [10] who has proposed a new kind of transmission based on a single wire coated with a dielectric. Recently, we have demonstrated that a thinning down of the line to some micrometres provides a good transmission parameter [4].…”

Section: Biomems Designmentioning

confidence: 99%

Nanometric metal wire as a guide for THz investigation of living cells

Treizebré

Bocquet

2008

IJNT

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The development of microsystems as tools for nanotechnology is strongly observed in the case of Biological MicroElectroMechanical Systems (BioMEMS). A part of them aim at the characterisation of biomolecules in solutions or in biological entities such as living cells. THz spectroscopy could provide interesting new complementary information at the systemic biology due to its faculty to probe the low binding energy between molecules or inside heavy biomolecules. We describe here a THz BioMEMS based on a new integrated propagation mode around a metallic wire where the radial size is down to the nanometre scale. This size is required for a sub-micrometre spatial resolution. We give the first results obtained in term of propagation constant and permittivity sensitivity. They are the key for an optimised configuration of THz nanoprobe. He is currently in PhD thesis and he works on the development of the THz BioMEMS (Biological MicroElectroMechanical System) for new investigations in life science, especially on single biological cells. Its research involves THz electromagnetic propagation and microfluidic circulation. He has demonstrated recently that a propagation of THz surface waves is possible on nanometre metallic wires.Bertrand Bocquet was received the MSc Degree in Physics in 1984, the PhD thesis in Electronics in 1989 and the Habilitation à Diriger des Recherches in 1999. From 1989 to 2000, he was an Assistant Professor at the Sciences and Technologies University of Lille. Its research interests were the medical imagery based on the near field microwave radiometry for the detection and characterisation of breast cancers and the real-time radiometric cameras at millimetre waves for defence and transportation safety. Electromagnetic -matter interactions, electromagnetic computation and inverse problems were involved in this research domain. Since 2000, he has been a Professor at the same university where he works on the interaction between THz waves and biological entities by using original microfluidic biosensors. Nanometric metal wire as a guide for THz investigation of living cells 785His researches include the fabrication of innovative microsystems with new materials, the design of THz integrated circuits and the characterisation of biological entities in liquid phase. This activity is supported by local and national grants. He heads the Microfluidic Microsystems and THz group (M²T). He is author or co-author of more than 100 international papers and communications, two book chapters and two patents. He is currently promoter of three PhD thesis.

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“…The remaining serious practical problem is how to reduce the guiding loss and how to maintain wire separation without disturbing the TEM mode propagation [8][9][10]. This type of waveguide has been experimentally demonstrated and theoretically studied in the microwave region [11,12]. Recently two-wire waveguides have been experimentally and theoretically studied for guided propagation in the THz frequency range [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Characteristics of THz Pulse Propagation on Teflon Covered Two-Wire Lines

Jeon

2015

Journal of the Optical Society of Korea

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We report efficient direct coupling of THz dipole antenna pulses onto air spaced two-wire transmission lines and Teflon covered two-wire lines. The air spaced two-wire lines show TEM mode propagation with very small group velocity dispersion (GVD) and relatively low attenuation. The Teflon covered two-wire lines showed comparatively much higher attenuation and GVD. However, the Teflon covered two-wire lines show a very good guiding property when the lines are curved. Although the lines are circled only 5.0 cm in diameter, there is no additional attenuation compared to straight the lines.

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Open Wire Lines

Cited by 63 publications

References 13 publications

Terahertz Spiral Planar Goubau Line Rejectors for Biological Characterization

Terahertz Spiral Planar Goubau Line Rejectors for Biological Characterization

Nanometric metal wire as a guide for THz investigation of living cells

Characteristics of THz Pulse Propagation on Teflon Covered Two-Wire Lines

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