期刊
SCIENCE BULLETIN
卷 64, 期 12, 页码 836-842出版社
ELSEVIER
DOI: 10.1016/j.scib.2018.12.003
关键词
Bound states in the continuum; Meta-optics; Second-harmonic generation; Nanoresonator; Metasurfaces
资金
- Australian Research Council
- Strategic Fund of the Australian National University
- Alexander von Humboldt Foundation
- Russian Science Foundation [18-7210140]
- Ministry of Education and Science of the Russian Federation [3.1500.2017/4.6]
- Foundation for the Advancement of Theoretical Physics and Mathematics BASIS(Russia)
- Russian Science Foundation [18-72-10140] Funding Source: Russian Science Foundation
discuss the recent advances in meta-optics and nanophotonics associated with the physics of bound states in the continuum (BICs). Such resonant states appear due to a strong coupling between leaky modes in optical guiding structures being supported by subwavelength high-index dielectric Mie-resonant nanoantennas or all-dielectric metasurfaces. First, we review briefly very recent developments in the BIC physics in application to isolated subwavelength particles. We pay a special attention to novel opportunities for nonlinear nanophotonics due to the large field enhancement inside the particle volume creating the resonant states with high-quality (high-Q) factors, the so-called quasi-BIC, that can be supported by the subwavelength particles. Second, we discuss novel applications of the BIC physics to all-dielectric optical metasurfaces with broken-symmetry meta-atoms when tuning to the BIC conditions allows to enhance substantially the Q factor of the flat-optics dielectric structures. We also present the original results on nonlinear high-Q metasurfaces and predict that the frequency conversion efficiency can be boosted dramatically by smart engineering of the asymmetry parameter of dielectric metasurfaces in the vicinity of the quasi-BIC regime. (C) 2018 Science China Press. Published by Elsevier B.V. and Science China Press. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据