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Strong Coupling of Resonant Metasurfaces with Epsilon-Near-Zero Guided Modes.
Xie, Peng; Deng, Yanhui; Ding, Qi; Zheng, Xiaorui; Zhou, Zhangkai; Kivshar, Yuri; Wang, Wei.
Afiliación
  • Xie P; College of Physics, Sichuan University, Chengdu 610065, China.
  • Deng Y; Nonlinear Physics Center, Research School of Physics, Australian National University, Canberra Australian Capital Territory 2601, Australia.
  • Ding Q; State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics, Sun Yat-sen University, Guangzhou 510275, China.
  • Zheng X; College of Physics, Sichuan University, Chengdu 610065, China.
  • Zhou Z; School of Engineering, Westlake University, Hangzhou 310030, China.
  • Kivshar Y; School of Engineering, Westlake University, Hangzhou 310030, China.
  • Wang W; State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics, Sun Yat-sen University, Guangzhou 510275, China.
Nano Lett ; 24(29): 9027-9033, 2024 Jul 24.
Article en En | MEDLINE | ID: mdl-38984823
ABSTRACT
We study, both theoretically and experimentally, strong interaction between a quasi-bound state in the continuum (QBIC) supported by a resonant metasurface with an epsilon-near-zero (ENZ) guided mode excited in an ultrathin ITO layer. We observe and quantify the strong coupling regime of the QBIC-ENZ interaction in the hybrid metasurface manifested through the mode splitting over 200 meV. We also measure experimentally the resonant nonlinear response enhanced near the ENZ frequency and observe the effective nonlinear refractive index up to ∼4 × 10-13 m2/W in the ITO-integrated dielectric nanoresonators, which provides a promising platform for low-power nonlinear photonic devices.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nano Lett Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nano Lett Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos