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All‐Dielectric Metasurfaces: Near‐Infrared Super‐Absorbing All‐Dielectric Metasurface Based on Single‐Layer Germanium Nanostructures (Laser Photonics Rev. 12(9)/2018)
Author(s) -
Tian Jingyi,
Luo Hao,
Li Qiang,
Pei Xuelu,
Du Kaikai,
Qiu Min
Publication year - 2018
Publication title -
laser and photonics reviews
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.778
H-Index - 116
eISSN - 1863-8899
pISSN - 1863-8880
DOI - 10.1002/lpor.201870039
Subject(s) - germanium , photonics , dielectric , optoelectronics , materials science , laser , absorption (acoustics) , dipole , optics , near infrared spectroscopy , excited state , physics , atomic physics , silicon , quantum mechanics
In article number 1800076 , Qiang Li and co‐workers propose an ultrathin (≈0.13 λ 0 ) germanium nanoantenna‐based all‐dielectric metasurface. Its near‐unity absorption is realized by simultaneously excited electric dipole and magnetic dipole resonances inside each element. This design paves the way for realizing next generation optoelectronic devices aimed for high‐speed photon detection and energy harvesting.