Nonlinear Metasurfaces Governed by Bound States in the Continuum

Koshelev, Kirill1,2; Tang, Yutao3; Li, Kingfai3; Choi, Duk-Yong4,5; Li, Guixin3; Kivshart, Yuri1,2

2019-07

10.1021/acsphotonics.9b00700

ACS Photonics   影响因子和分区

2330-4022

Nonlinear nanostructured surfaces provide a paradigm shift in nonlinear optics with new ways to control and manipulate frequency conversion processes at the nanoscale, also offering novel opportunities for applications in photonics, chemistry, material science, and biosensing. Here, we develop a general approach to employ sharp resonances in metasurfaces originated from the physics of bound states in the continuum for both engineering and enhancing the nonlinear response. We study experimentally the third-harmonic generation from metasurfaces composed of symmetry-broken silicon meta-atoms and reveal that the harmonic generation intensity depends critically on the asymmetry parameter. We employ the concept of the critical coupling of light to the metasurface resonances to uncover the effect of radiative and nonradiative losses on the nonlinear conversion efficiency.

nanophotonics nonlinear optics bound states in the continuum meta-optics all-dielectric metasurfaces third-harmonic generation

SCI ; EI

英语

ESI高被引

其他

Russian Science Foundation[17-12-01581]

Science & Technology - Other Topics ; Materials Science ; Optics ; Physics

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Optics ; Physics, Applied ; Physics, Condensed Matter

WOS:000476684300010

AMER CHEMICAL SOC

20193207267606

Harmonic analysis ; Harmonic generation ; Nanostructured materials ; Nonlinear optics

Light/Optics:741.1 ; Nonlinear Optics:741.1.1 ; Nanotechnology:761 ; Numerical Methods:921.6

Web of Science

1.Australian Natl Univ, Nonlinear Phys Ctr, Canberra, ACT 2601, Australia
2.ITMO Univ, Dept Nanophoton & Metamat, St Petersburg 197101, Russia
3.Southern Univ Sci & Technol, Shenzhen Inst Quantum Sci & Engn, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
4.Australian Natl Univ, Laser Phys Ctr, Canberra, ACT 2601, Australia
5.Jinan Univ, Coll Informat Sci & Technol, Guangzhou 510632, Guangdong, Peoples R China

Koshelev, Kirill,Tang, Yutao,Li, Kingfai,et al. Nonlinear Metasurfaces Governed by Bound States in the Continuum[J]. ACS Photonics,2019,6(7):1639-1644.

Koshelev, Kirill,Tang, Yutao,Li, Kingfai,Choi, Duk-Yong,Li, Guixin,&Kivshart, Yuri.(2019).Nonlinear Metasurfaces Governed by Bound States in the Continuum.ACS Photonics,6(7),1639-1644.

Koshelev, Kirill,et al."Nonlinear Metasurfaces Governed by Bound States in the Continuum".ACS Photonics 6.7(2019):1639-1644.