Dipolar resonances in conductive carbon micro-fibers probed by near-field terahertz spectroscopy

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Dipolar resonances in conductive carbon micro-fibers probed by near-field terahertz spectroscopy. / Khromova, I.; Navarro-Cía, M.; Brener, I.; Reno, J. L.; Ponomarev, A.; Mitrofanov, O.

In: Applied Physics Letters, Vol. 107, No. 2, 021102, 13.07.2015.

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Khromova, I. ; Navarro-Cía, M. ; Brener, I. ; Reno, J. L. ; Ponomarev, A. ; Mitrofanov, O. / Dipolar resonances in conductive carbon micro-fibers probed by near-field terahertz spectroscopy. In: Applied Physics Letters. 2015 ; Vol. 107, No. 2.

Bibtex

@article{05263a6bfaed45039999d85c8bce6c33,
title = "Dipolar resonances in conductive carbon micro-fibers probed by near-field terahertz spectroscopy",
abstract = "We observe dipole resonances in thin conductive carbon micro-fibers by detecting an enhanced electric field in the near-field of a single fiber at terahertz (THz) frequencies. Time-domain analysis of the electric field shows that each fiber sustains resonant current oscillations at the frequency defined by the fiber{\textquoteright}s length. Strong dependence of the observed resonance frequency and degree of field enhancement on the fibers{\textquoteright} conductive properties enable direct non-contact probing of the THz conductivity in single carbon micro-fibers. We find the conductivity of the fibers to be within the range of 1–5 x 10^4 S/m. This approach is suitable for experimental characterization of individual doped semiconductor resonators for THz metamaterials and devices",
author = "I. Khromova and M. Navarro-C{\'i}a and I. Brener and Reno, {J. L.} and A. Ponomarev and O. Mitrofanov",
year = "2015",
month = jul,
day = "13",
doi = "10.1063/1.4926628",
language = "English",
volume = "107",
journal = "Applied Physics Letters",
issn = "0003-6951",
publisher = "American Institute of Physics",
number = "2",

}

RIS

TY - JOUR

T1 - Dipolar resonances in conductive carbon micro-fibers probed by near-field terahertz spectroscopy

AU - Khromova, I.

AU - Navarro-Cía, M.

AU - Brener, I.

AU - Reno, J. L.

AU - Ponomarev, A.

AU - Mitrofanov, O.

PY - 2015/7/13

Y1 - 2015/7/13

N2 - We observe dipole resonances in thin conductive carbon micro-fibers by detecting an enhanced electric field in the near-field of a single fiber at terahertz (THz) frequencies. Time-domain analysis of the electric field shows that each fiber sustains resonant current oscillations at the frequency defined by the fiber’s length. Strong dependence of the observed resonance frequency and degree of field enhancement on the fibers’ conductive properties enable direct non-contact probing of the THz conductivity in single carbon micro-fibers. We find the conductivity of the fibers to be within the range of 1–5 x 10^4 S/m. This approach is suitable for experimental characterization of individual doped semiconductor resonators for THz metamaterials and devices

AB - We observe dipole resonances in thin conductive carbon micro-fibers by detecting an enhanced electric field in the near-field of a single fiber at terahertz (THz) frequencies. Time-domain analysis of the electric field shows that each fiber sustains resonant current oscillations at the frequency defined by the fiber’s length. Strong dependence of the observed resonance frequency and degree of field enhancement on the fibers’ conductive properties enable direct non-contact probing of the THz conductivity in single carbon micro-fibers. We find the conductivity of the fibers to be within the range of 1–5 x 10^4 S/m. This approach is suitable for experimental characterization of individual doped semiconductor resonators for THz metamaterials and devices

UR - http://www.mendeley.com/research/dipolar-resonances-conductive-carbon-microfibers-probed-nearfield-terahertz-spectroscopy

U2 - 10.1063/1.4926628

DO - 10.1063/1.4926628

M3 - Article

VL - 107

JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

IS - 2

M1 - 021102

ER -