540 citations · 1.8k across the 8 of their papers we have counts for
8 papers
Magnetic-free traveling-wave nonreciprocal superconducting microwave components
Dengke Zhang, Jaw-Shen Tsai
We propose a design to realize integrated broadband nonreciprocal microwave isolators and circulators using superconducting circuit elements without any magnetic materials. To obta…
Waveguide-integrated, plasmonic enhanced graphene photodetectors
J. E. Muench, A. Ruocco, M. A. Giambra +13
We present a micrometer scale, on-chip integrated, plasmonic enhanced graphene photodetector (GPD) for telecom wavelengths operating at zero dark current. The GPD is designed and o…
Orbital angular momentum induced by nonabsorbing optical elements through space-variant polarization-state manipulations
Dengke Zhang, Xue Feng, Yidong Huang
To manipulate orbital angular momentum (OAM) carried by light beams, there is a great interest in designing various optical elements from the deep-ultraviolet to the microwave. Nor…
Observation of the exceptional point in cavity magnon-polaritons
Dengke Zhang, Xiao-Qing Luo, Yi-Pu Wang +2
Magnon-polaritons are hybrid light-matter quasiparticles originating from the strong coupling between magnons and photons. They have emerged as a potential candidate for implementi…
Bistability of Cavity Magnon Polaritons
Yi-Pu Wang, Guo-Qiang Zhang, Dengke Zhang +3
We report the first observation of the magnon-polariton bistability in a cavity magnonics system consisting of cavity photons strongly interacting with the magnons in a small yttri…
Magnon Kerr effect in a strongly coupled cavity-magnon system
Yi-Pu Wang, Guo-Qiang Zhang, Dengke Zhang +6
We experimentally demonstrate magnon Kerr effect in a cavity-magnon system, where magnons in a small yttrium iron garnet (YIG) sphere are strongly but dispersively coupled to the p…
Cavity quantum electrodynamics with ferromagnetic magnons in a small yttrium-iron-garnet sphere
Dengke Zhang, Xin-Ming Wang, Tie-Fu Li +4
Hybridizing collective spin excitations and a cavity with high cooperativity provides a new research subject in the field of cavity quantum electrodynamics and can also have potent…
Identifying orbital angular momentum of vectorial vortices with Pancharatnam phase and Stokes parameters
Dengke Zhang, Xue Feng, Kaiyu Cui +2
In this work, an explicit formula is deduced for identifying the orbital angular moment (OAM) of vectorial vortex with space-variant state of polarization (SOP). Different to scala…