Silver-Coated Teflon Tubes for Waveguiding at 1–2 THz

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Silver-Coated Teflon Tubes for Waveguiding at 1–2 THz. / Navarro-Cia, Miguel; Melzer, Jeffrey E.; Harrington, James A.; Mitrofanov, Oleg.

In: Journal of Infrared, Millimeter, and Terahertz Waves, Vol. 36, No. 6, 01.06.2015, p. 542-555.

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Navarro-Cia, Miguel ; Melzer, Jeffrey E. ; Harrington, James A. ; Mitrofanov, Oleg. / Silver-Coated Teflon Tubes for Waveguiding at 1–2 THz. In: Journal of Infrared, Millimeter, and Terahertz Waves. 2015 ; Vol. 36, No. 6. pp. 542-555.

Bibtex

@article{78a4aa19fe1a45f58087e4d9822657ac,
title = "Silver-Coated Teflon Tubes for Waveguiding at 1–2 THz",
abstract = "Realization of single-mode low-loss waveguides for 1.0–2.0 THz remains a challenging problem due to large absorption in most dielectrics and ohmic losses in metals. To address this problem, we investigate dielectric-lined hollow metallic waveguides fabricated by coating 1-mm diameter 38-μm-thick polytetrafluoroethylene tubes with silver. These waveguides support a hybrid HE11 mode, which exhibits low attenuation and low dispersion. Quasi-single-mode propagation is achieved in the band of 1.0–1.6 THz, in which the hybrid HE11 mode is supported by the waveguide. In this band, the experimentally measured loss is ~20 dB/m (~0.046 cm−1), whereas the numerically computed loss is ~7 dB/m (~0.016 cm−1). The difference is attributed to additional losses in the dielectric layer, which can be reduced by using alternative polymers.",
keywords = "Near-field time-domain microscopy, Terahertz imaging, Terahertz spectroscopy, Terahertz waveguide, Ultrafast measurement",
author = "Miguel Navarro-Cia and Melzer, {Jeffrey E.} and Harrington, {James A.} and Oleg Mitrofanov",
year = "2015",
month = jun,
day = "1",
doi = "10.1007/s10762-015-0157-5",
language = "English",
volume = "36",
pages = "542--555",
journal = "Journal of Infrared, Millimeter, and Terahertz Waves",
issn = "1866-6892",
publisher = "Springer",
number = "6",

}

RIS

TY - JOUR

T1 - Silver-Coated Teflon Tubes for Waveguiding at 1–2 THz

AU - Navarro-Cia, Miguel

AU - Melzer, Jeffrey E.

AU - Harrington, James A.

AU - Mitrofanov, Oleg

PY - 2015/6/1

Y1 - 2015/6/1

N2 - Realization of single-mode low-loss waveguides for 1.0–2.0 THz remains a challenging problem due to large absorption in most dielectrics and ohmic losses in metals. To address this problem, we investigate dielectric-lined hollow metallic waveguides fabricated by coating 1-mm diameter 38-μm-thick polytetrafluoroethylene tubes with silver. These waveguides support a hybrid HE11 mode, which exhibits low attenuation and low dispersion. Quasi-single-mode propagation is achieved in the band of 1.0–1.6 THz, in which the hybrid HE11 mode is supported by the waveguide. In this band, the experimentally measured loss is ~20 dB/m (~0.046 cm−1), whereas the numerically computed loss is ~7 dB/m (~0.016 cm−1). The difference is attributed to additional losses in the dielectric layer, which can be reduced by using alternative polymers.

AB - Realization of single-mode low-loss waveguides for 1.0–2.0 THz remains a challenging problem due to large absorption in most dielectrics and ohmic losses in metals. To address this problem, we investigate dielectric-lined hollow metallic waveguides fabricated by coating 1-mm diameter 38-μm-thick polytetrafluoroethylene tubes with silver. These waveguides support a hybrid HE11 mode, which exhibits low attenuation and low dispersion. Quasi-single-mode propagation is achieved in the band of 1.0–1.6 THz, in which the hybrid HE11 mode is supported by the waveguide. In this band, the experimentally measured loss is ~20 dB/m (~0.046 cm−1), whereas the numerically computed loss is ~7 dB/m (~0.016 cm−1). The difference is attributed to additional losses in the dielectric layer, which can be reduced by using alternative polymers.

KW - Near-field time-domain microscopy

KW - Terahertz imaging

KW - Terahertz spectroscopy

KW - Terahertz waveguide

KW - Ultrafast measurement

UR - http://www.scopus.com/inward/record.url?scp=84937760862&partnerID=8YFLogxK

U2 - 10.1007/s10762-015-0157-5

DO - 10.1007/s10762-015-0157-5

M3 - Article

AN - SCOPUS:84937760862

VL - 36

SP - 542

EP - 555

JO - Journal of Infrared, Millimeter, and Terahertz Waves

JF - Journal of Infrared, Millimeter, and Terahertz Waves

SN - 1866-6892

IS - 6

ER -