Observaton of tunneling of slow and fast electromagnetic modes in coupled periodic waveguides

Sangwoo Ha; Andrey A. Sukhorukov; Andrei Lavrinenko; Ilya V. Shadrivov; David A. Powell; Yuri S. Kivshar

doi:10.1063/1.3553785

Observaton of tunneling of slow and fast electromagnetic modes in coupled periodic waveguides

Sangwoo Ha
, Andrey A. Sukhorukov
, Andrei Lavrinenko
, Ilya V. Shadrivov
, David A. Powell
, Yuri S. Kivshar

Australian National University

Research output: Contribution to journal › Journal article › Research › peer-review

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Abstract

We report the experimental observation of tunneling of slow and fast electromagnetic modes in coupled periodic waveguides shifted longitudinally by half of modulation period. According to the symmetry analysis, such a coupler supports two electromagnetic modes with exactly matched slow or fast group velocities but different phase velocities for frequencies close to the edge of the photonic band. We confirm the predicted properties of the modes by directly extracting their dispersion and group velocities from the near-field measurements using specialized Bloch-wave spectral analysis method.

Original language	English
Article number	061909
Journal	Applied Physics Letters
Volume	98
Issue number	6
ISSN	0003-6951
DOIs	https://doi.org/10.1063/1.3553785
Publication status	Published - 2011

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Copyright (2011) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

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title = "Observaton of tunneling of slow and fast electromagnetic modes in coupled periodic waveguides",

abstract = "We report the experimental observation of tunneling of slow and fast electromagnetic modes in coupled periodic waveguides shifted longitudinally by half of modulation period. According to the symmetry analysis, such a coupler supports two electromagnetic modes with exactly matched slow or fast group velocities but different phase velocities for frequencies close to the edge of the photonic band. We confirm the predicted properties of the modes by directly extracting their dispersion and group velocities from the near-field measurements using specialized Bloch-wave spectral analysis method.",

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note = "Copyright (2011) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.",

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AU - Ha, Sangwoo

AU - Sukhorukov, Andrey A.

AU - Lavrinenko, Andrei

AU - Shadrivov, Ilya V.

AU - Powell, David A.

AU - Kivshar, Yuri S.

N1 - Copyright (2011) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

PY - 2011

Y1 - 2011

N2 - We report the experimental observation of tunneling of slow and fast electromagnetic modes in coupled periodic waveguides shifted longitudinally by half of modulation period. According to the symmetry analysis, such a coupler supports two electromagnetic modes with exactly matched slow or fast group velocities but different phase velocities for frequencies close to the edge of the photonic band. We confirm the predicted properties of the modes by directly extracting their dispersion and group velocities from the near-field measurements using specialized Bloch-wave spectral analysis method.

AB - We report the experimental observation of tunneling of slow and fast electromagnetic modes in coupled periodic waveguides shifted longitudinally by half of modulation period. According to the symmetry analysis, such a coupler supports two electromagnetic modes with exactly matched slow or fast group velocities but different phase velocities for frequencies close to the edge of the photonic band. We confirm the predicted properties of the modes by directly extracting their dispersion and group velocities from the near-field measurements using specialized Bloch-wave spectral analysis method.

U2 - 10.1063/1.3553785

DO - 10.1063/1.3553785

M3 - Journal article

SN - 0003-6951

VL - 98

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 6

M1 - 061909

ER -

Observaton of tunneling of slow and fast electromagnetic modes in coupled periodic waveguides

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