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Threshold conditions of electric field enhancement and energy confinement in the low-index core of nanoscale waveguides

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By Shuqing Chen, Erkuang Zhu, Sijie Luo, Suoming Wang
| osapublishing.org
Abstract Threshold conditions to realize electric field enhancement and energy confinement in the low-refractive-index core of nanoscale waveguides are studied by solving the field function. When the incident lightwave meets the relation of special thresholds, we observe the enhanced electric field and a concentrated light energy in the core. The electric field enhancement and the confined light power are highly dependent on the light wavelength.
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