Focusing the electromagnetic field to 10−6 λ for ultra-high enhancement of field-matter interaction
oleh: Xiang-Dong Chen, En-Hui Wang, Long-Kun Shan, Ce Feng, Yu Zheng, Yang Dong, Guang-Can Guo, Fang-Wen Sun
| Format: | Article |
|---|---|
| Diterbitkan: | Nature Portfolio 2021-11-01 |
Deskripsi
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.