355 citations · 996 across the 15 of their papers we have counts for
15 papers
Enhanced Robustness via Loss Engineering in Detuned Non-Hermitian Scattering Systems
Jipeng Xu, Yuanhao Mao, Jianfa Zhang +3
Non-Hermitian optics has revealed a series of counterintuitive phenomena with profound implications for sensing, lasing, and light manipulation. While the non-Hermiticity of Hamito…
Intrinsic polarization conversion and avoided-mode crossing in X-cut lithium niobate microrings
Zelin Tan, Jianfa Zhang, Zhihong Zhu +4
Compared with well-developed free space polarization converters, polarization conversion between TE and TM modes in waveguide is generally considered to be caused by shape birefrin…
Magneto-chiral backscatterings by rotationally symmetric nonreciprocal structures
Chunchao Wen, Jianfa Zhang, Shiqiao Qin +2
It was proved that the joint operation of electromagnetic reciprocity and -fold () rotational symmetry would secure arbitrary polarization-independent backscattering eff…
Spatio-Temporal Nonlinear Theory in Birefringent Microrings
Zelin Tan, Xingqiao Chen, Ning Liu +5
Frequency-dependent nonlinear process in microresonators is widely acknowledged, but there is no theory available to calculate the conversion efficiency for each resonance of the r…
Momentum-space Scattering Extremizations
Chunchao Wen, Jianfa Zhang, Shiqiao Qin +2
Studies into scatterings of photonic structures have been so far overwhelmingly focused on their dependencies on the spatial and spectral morphologies of the incident waves. In con…
Large Chiroptical Effects in Planar Chiral Metamaterials
Weimin Ye, Xiaodong Yuan, Chucai Guo +3
Chiroptical effects, characterized by different optical responses for left- (LCP) and right- handed circularly polarized light (RCP), are powerful and valuable tools in optics with…
Modulating light with light via giant nano-opto-mechanical nonlinearity of plasmonic metamaterial
Jun-Yu Ou, Eric Plum, Jianfa Zhang +1
From the demonstration of saturable absorption by Vavilow and Levshin in 1926, and with invention of the laser, unavailability of strongly nonlinear materials was a key obstacle fo…
Tunable asymmetric transmission of THz wave through a graphene planar chiral structure
Junyang Zhao, Jianfa Zhang, Zhihong Zhu +2
In this letter, we show that asymmetric transmission of circularly polarized waves through a nanostructured planar chiral graphene film can be observed in terahertz range. The asym…
Invisible nanowires with interfering electric and toroidal dipoles
Wei Liu, Jianfa Zhang, Bing Lei +2
By studying the scattering of normally incident planewaves by a single nanowire, we reveal the indispensable role of toroidal multipole excitation in multipole expansions of radiat…
Toroidal dipole induced transparency for core-shell nanoparticles
Wei Liu, Jianfa Zhang, Andrey E. Miroshnichenko
We investigate the scattering properties of spherical nanoparticles by employing a Cartesian multipole expansion method which has incorporated radiating toroidal multipoles. It is…
Circular Polarizer Realized by a Single Layer of Planar Chiral Metallic Nanostructure
Weimin Ye, Xiaodong Yuan, Chucai Guo +5
As a basic optical element, circular polarizer plays significant roles in signal transmission, measurements and life science microscopy. Three-dimensional (3D) chiral structures ha…
Ultra-directional forward scattering by individual core-shell nanoparticles
Wei Liu, Jianfa Zhang, Bing Lei +3
We study the angular scattering properties of individual core-shell nanoparticles that support simultaneously both electric and optically-induced magnetic resonances of different o…
Controlling light-with-light without nonlinearity
Jianfa Zhang, Kevin F. MacDonald, Nikolay I. Zheludev
According to Huygens' superposition principle, light beams traveling in a linear medium will pass though one another without mutual disturbance. Indeed, it is widely held that cont…
Metamaterial 'Gecko Toe': Optically-Controlled Adhesion to Any Surface
J. Zhang, K. F. MacDonald, N. I. Zheludev
On the mesoscopic scale, electromagnetic forces are of fundamental importance to an enormously diverse range of systems, from optical tweezers to the adhesion of gecko toes. Here w…
Controlling the Colour of Metals: Intaglio and Bas-Relief Metamaterials
Jianfa Zhang, Jun-Yu Ou, Nikitas Papasimakis +3
The fabrication of indented ('intaglio') or raised ('bas-relief') sub-wavelength metamaterial patterns on a metal surface provides a mechanism for changing and controlling the colo…