Strong plasmonic confinement and optical force in phosphorene pairs

Hua Lu, Yongkang Gong, Dong Mao, Xuetao Gan, Jianlin Zhao

Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

25 Wedi eu Llwytho i Lawr (Pure)

Crynodeb

The plasmonic responses in the spatially separated phosphorene (single-layer black phosphorus) pairs are investigated, mainly containing the field enhancement, light confinement, and optical force. It is found that the strong anisotropic dispersion of black phosphorus gives rise to the direction-dependent symmetric and anti-symmetric plasmonic modes. Our results demonstrate that the symmetrical modes possess stronger field enhancement, higher light confinement, and larger optical force than the anti-symmetric modes in the nanoscale structures. Especially, the light confinement ratio and optical force for the symmetric mode along the armchair direction of black phosphorus can reach as high as >90% and >3000 pN/mW, respectively. These results may open a new door for the light manipulation at nanoscale and the design of black phosphorus based photonic devices. (C) 2017 Optical Society of America

Iaith wreiddiolSaesneg
Tudalennau (o-i)5255-5263
Nifer y tudalennau9
CyfnodolynOptics Express
Cyfrol25
Rhif cyhoeddi5
Dynodwyr Gwrthrych Digidol (DOIs)
StatwsCyhoeddwyd - 6 Maw 2017

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