Focusing the electromagnetic field to 10−6 λ for ultra-high enhancement of field-matter interaction

Subwavelength focusing of electromagnetic fields often uses evanescent waves and nanostructures to aid confinement. Here, the authors localize a microwave field to 6 orders of magnitude smaller than the wavelength, by coupling to confined electron oscillations in a hybrid nanowire-bowtie antenna.

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Bibliographic Details
Main Authors: Xiang-Dong Chen, En-Hui Wang, Long-Kun Shan, Ce Feng, Yu Zheng, Yang Dong, Guang-Can Guo, Fang-Wen Sun
Format: article
Language:EN
Published: Nature Portfolio 2021
Subjects:
Q
Online Access:https://doaj.org/article/2f7552f1fa9a4ad6a105bce2aee52bb6
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