On-Chip Photonic Spin Hall Lens

Du, Luping1; Xie, Zhenwei1,2; Si, Guangyuan3; Yang, Aiping1; Li, Congcong1; Lin, Jiao3; Li, Guixin4; Wang, Hong2; Yuan, Xiaocong1

2019-08

10.1021/acsphotonics.9b00551

ACS Photonics   影响因子和分区

2330-4022

Focusing and Fourier transformation are two key functionalities of optical lenses, which are vital for optical information refining and processing. These unique features persist and are even carried forward on a planar configuration that works on a surface wave, enabling on-chip and ultrafast photonic information processing. Here, we design and demonstrate a type of photonic spin Hall lens (pSHL) that works on surface plasmon polaritons. It could perform spatially separated focusing and photonic Fourier transformation controlled by the handedness of the incident circularly polarized light (CPL). Their splitting distance can easily be adjusted by altering the scaling factor of the phase gradient encoded onto the lens, a manifestation of an optical spin Hall effect. The pSHL is designed to retrieve the phase delay required to compensate for the spatial shift of the lens; this is realized using a plasmonic metasurface that yields the spin-dependent Pancharatnam-Berry phases. Applications with the pSHL for photonic spin routing and OAM-mode demultiplexing are demonstrated. The proposed pSHL is ultrathin, compact, and easy to fabricate. It holds a great promise for the development of ultracompact photonic spin devices.

surface plasmonic polariton photonic spin Hall effect metasurface angular momentum of light optical vortices

SCI ; EI

英语

其他

Start-up Funding of SZU[2019075]

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

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

WOS:000482545400003

AMER CHEMICAL SOC

20193307323003

Crystal symmetry ; Electromagnetic wave polarization ; Fourier transforms ; Lenses ; Phonons ; Photons ; Plasmonics ; Refining ; Surface waves

Magnetism: Basic Concepts and Phenomena:701.2 ; Electromagnetic Waves:711 ; Optical Devices and Systems:741.3 ; Mathematical Transformations:921.3 ; Atomic and Molecular Physics:931.3 ; Crystal Lattice:933.1.1

Web of Science

1.Shenzhen Univ, Inst Microscale Optoelect, Shenzhen Key Lab Microscale Opt Informat Technol, Nanophoton Res Ctr, Shenzhen 518060, Guangdong, Peoples R China
2.Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore
3.RMIT Univ, Sch Engn, Melbourne, Vic 3001, Australia
4.Southern Univ Sci & Technol, Shenzhen Inst Quantum Sci & Engn, Dept Mat Sci & Engn, 1088 Xueyuan Ave, Shenzhen 518055, Peoples R China

Du, Luping,Xie, Zhenwei,Si, Guangyuan,et al. On-Chip Photonic Spin Hall Lens[J]. ACS Photonics,2019,6(8):1840-1847.

Du, Luping.,Xie, Zhenwei.,Si, Guangyuan.,Yang, Aiping.,Li, Congcong.,...&Yuan, Xiaocong.(2019).On-Chip Photonic Spin Hall Lens.ACS Photonics,6(8),1840-1847.

Du, Luping,et al."On-Chip Photonic Spin Hall Lens".ACS Photonics 6.8(2019):1840-1847.