Precise control of positive and negative Goos-Hänchen shifts in graphene

X Zhou, S Liu, Y Ding, L Min, Z Luo - Carbon, 2019 - Elsevier
We study the Goos-Hänchen (GH) effect in a graphene-substrate system comprehensively
by using the transfer matrix method. It is revealed that the magnitude and sign of GH shifts …

Giant Goos-Hänchen shifts in non-Hermitian dielectric multilayers incorporated with graphene

D Zhao, S Ke, Q Liu, B Wang, P Lu - Optics Express, 2018 - opg.optica.org
We theoretically investigate the Goos-Hänchen (GH) shifts of optical beam in a defective
photonic crystal composed of dielectric multilayers and graphene. The system is non …

Effective electric-field force for a photon in a synthetic frequency lattice created in a waveguide modulator

C Qin, L Yuan, B Wang, S Fan, P Lu - Physical Review A, 2018 - APS
Here we create an effective electric field force for photon in a synthetic frequency lattice to
control the spectrum of light. The frequency lattice is created based on an optical waveguide …

Topological bound modes in optical waveguide arrays with alternating positive and negative couplings

N Fu, Z Fu, H Zhang, Q Liao, D Zhao, S Ke - Optical and Quantum …, 2020 - Springer
We investigate the topological bound modes in a binary waveguide array with alternating
positive and negative couplings. The negative coupling is realized by incorporating …

Optical imaginary directional couplers

S Ke, D Zhao, Q Liu, S Wu, B Wang… - Journal of Lightwave …, 2018 - opg.optica.org
We investigate the light propagation in a double-waveguide coupler with imaginary-valued
coupling coefficient. The imaginary coupling is realized by incorporating an additional …

Adiabatic transfer of surface plasmons in non-Hermitian graphene waveguides

S Ke, D Zhao, Q Liu, W Liu - Optical and Quantum Electronics, 2018 - Springer
We investigate the energy transfer of surface plasmon polaritons (SPPs) based on adiabatic
passage in a non-Hermitian waveguide composed of three coupled graphene sheets. The …

Identifying the contributions of multiple-returning recollision orbits in strong-field above-threshold ionization

J Tan, Y Li, Y Zhou, M He, Y Chen, M Li… - Optical and Quantum …, 2018 - Springer
We calculate the photoelectron momentum distributions (PMDs) from strong-field above-
threshold ionization of Ar in the co-linearly polarized two-color laser fields consisting a …

Large lateral shift in complex dielectric multilayers with nearly parity–time symmetry

D Zhao, W Liu, S Ke, Q Liu - Optical and Quantum Electronics, 2018 - Springer
We investigate the lateral shift of optical beam in complex dielectric multilayers with nearly
parity–time (PT) symmetry. The gain and loss of dielectrics are modulated to achieve nearly …

Strong absorption near exceptional points in plasmonic waveguide arrays

S Ke, J Liu, Q Liu, D Zhao, W Liu - Optical and Quantum Electronics, 2018 - Springer
We investigate the exceptional points (EPs) in plasmonic waveguide arrays, including
metallic waveguide arrays (MWAs) and graphene sheet arrays (GSAs). The EPs emerge at …

Topological interface modes in graphene multilayer arrays

F Wang, S Ke, C Qin, B Wang, H Long, K Wang… - Optics & Laser …, 2018 - Elsevier
We investigate the topological interface modes of surface plasmon polaritons in a multilayer
system composed of graphene waveguide arrays. The topological interface modes emerge …