708 citations · 2k across the 14 of their papers we have counts for
14 papers
Hybrid Symmetry Breaking for Chiral Quasi-Bound States in the Continuum
Yongtu Zou, Zhiyao Ma, Guangwei Hu +3
Chiral optical modes provide a fundamental platform for spin selective light matter interactions and underpin emerging applications ranging from chiral emission to polarization-con…
Twist-angle and thickness-ratio tuning of plasmon polaritons in twisted bilayer van der Waals films
Chong Wang, Yuangang Xie, Junwei Ma +13
Stacking bilayer structures is an efficient way to tune the topology of polaritons in in-plane anisotropic films, e.g., by leveraging the twist angle (TA). However, the effect of a…
Airy-like hyperbolic shear polariton in high symmetry van der Waals crystals
Yihua Bai, Qing Zhang, Tan Zhang +7
Controlling light at the nanoscale by exploiting ultra-confined polaritons - hybrid light and matter waves - in various van der Waals (vdW) materials empowers unique opportunities…
Tailoring topological transition of anisotropic polaritons by interface engineering in biaxial crystals
Yali Zeng, Qingdong Ou, Lu Liu +11
Polaritons in polar biaxial crystals with extreme anisotropy offer a promising route to manipulate nanoscale light-matter interactions. The dynamical modulation of their dispersion…
Planar chiral metasurfaces with maximal tunable chiroptical response driven by bound states in the continuum
Tan Shi, Zi-Lan Deng, Guangzhou Geng +8
Optical metasurfaces with high-Q chiral resonances can boost light-matter interaction for various applications of chiral response for ultrathin, active, and nonlinear metadevices.…
Phyllotaxis-inspired Nanosieves with Multiplexed Orbital Angular Momentum
Zhongwei Jin, David Janoschka, Junhong Deng +15
Nanophotonic platforms such as metasurfaces, achieving arbitrary phase profiles within ultrathin thickness, emerge as miniaturized, ultracompact and kaleidoscopic optical vortex ge…
Hybridized hyperbolic surface phonon polaritons at α-MoO3 and polar dielectric interfaces
Qing Zhang, Qingdong Ou, Guangwei Hu +5
Surface phonon polaritons (SPhPs) in polar dielectrics offer new opportunities for infrared nanophotonics due to sub-diffraction confinement with low optical losses. Though the pol…
Arbitrary cylindrical vector beam generation enabled by polarization-selective Gouy phase shifter
J. Jia, K. Zhang, G. Hu +7
Cylindrical vector beams (CVBs), which possesses polarization distribution of rotational symmetry on the transverse plane, can be developed in many optical technologies. Convention…
Observation of nonreciprocal magneto-optical scattering in nonencapsulated few-layered CrI3
Zhen Liu, Kai Guo, Guangwei Hu +17
Magneto-optical effect refers to a rotation of polarization plane, which has been widely studied in traditional ferromagnetic metal and insulator films and scarcely in two-dimensio…
Collective near-field coupling in infrared-phononic metasurfaces for nano-light canalization
Peining Li, Guangwei Hu, Irene Dolado +10
Polaritons, coupled excitations of photons and dipolar matter excitations, can propagate along anisotropic metasurfaces with either hyperbolic or elliptical dispersion. At the tran…
Observation of topological polaritons and photonic magic angles in twisted van der Waals bi-layers
Guangwei Hu, Qingdong Ou, Guangyuan Si +9
Twisted two-dimensional bi-layers offer exquisite control on the electronic bandstructure through the interlayer rotation and coupling, enabling magic-angle flat-band superconducti…
Moiré Hyperbolic Metasurfaces
Guangwei Hu, Alex Krasnok, Yarden Mazor +2
Recent advances in twistronics of low-dimensional materials, such as bilayer graphene and transition-metal dichalcogenides, have enabled a plethora of unusual phenomena associated…
Suppressing Material Loss for Functional Nanophotonics Using Bandgap Engineering
Mingsong Wang, Alex Krasnok, Sergey Lepeshov +6
All-dielectric nanoantennas have recently opened exciting opportunities for functional nanophotonics, owing to their strong optical resonances along with low material loss in the n…
Epoxy-inspired Nonlinear Interface Integrating Monolayer Transition-Metal Dichalcogenides with Linear Plasmonic Nanosieves
Xuanmiao Hong, Guangwei Hu, Wenchao Zhao +11
Although TMDC monolayers offer giant optical nonlinearity within few-angstrom thickness, it is still elusive to modulate and engineer the wavefront of nonlinear emissions. The grai…