Topological nature of optical bound states in the continuum.
By B. Zhen, C. Hsu, Ling Lu, A. Douglas Stone, Marin Soljačić. Physical Review Letters, 2014
778 citations recorded by the source corpus.
Optical bound states in the continuum (BICs) have recently been realized in photonic crystal slabs, where the disappearance of out-of-plane radiation turns leaky resonances into guided modes with infinite lifetimes. We show that such BICs are vortex centers in the polarization directions of far-field radiation. They carry conserved and quantized topological charges, defined by the winding number of the polarization vectors, which ensure their robust existence and govern their generation, evolution, and annihilation. Our findings connect robust BICs in photonics to a wide range of topological physical phenomena.
Subfields: Atomic and Molecular Physics, and Optics, Biomedical Engineering, Electrical and Electronic Engineering
View Paper: https://www.semanticscholar.org/paper/409ed01d5b2344d907373db37e7b365acb097901
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Atomic and Molecular Physics, and Optics
In Biomedical Engineering
In Electrical and Electronic Engineering
Citations in the corpus
- Lasing action from photonic bound states in continuum (2017, background): “ven after scaling down the membrane to as few as 8-by-8 nanoresonators. BIC lasers open new avenues in the study of light-matter interaction as they are intrinsically connected to topological charges [15], and, represent natural vector beam sources [16], which are highly sought after in the fields o”
- Asymmetric Metasurfaces with High-Q Resonances Governed by Bound States in the Continuum. (2018, background): “The ideal (lossless and infinite) structure supports a true optical BIC at θ = 0 ◦ [31].”
- Experimental observation of a polarization vortex at an optical bound state in the continuum (2018, methodology): “Recently, it was predicted that light radiated by such modes around the BIC momentumfrequency condition should display a vortex in its far-field polarization profile, making the BIC topologically protected.(3) We study a 1-dimensional grating supporting a transverse-magnetic mode with a BIC near 700”
- Roadmap on topological photonics (2022, neutral): “As ubiquitous phenomena in many wave systems, the BICs can be interpreted as destructive interference between radiation channels, while their underlying nature is topological [141]: the topological defects in momentum space, represented by integer topological charges carried by polarization vectors.”
- Metasurface Engineering through Bound States in the Continuum (2019, background): “It has been demonstrated that, depending on the characteristics of the topology of the bulk bands, topological edge modes can be protected to certain classes of defects [33].”