5 papers
Highly efficient acousto-optic modulation using nonsuspended thin-film lithium niobate-chalcogenide hybrid waveguides
Lei Wan, Zhiqiang Yang, Wenfeng Zhou +9
A highly efficient on-chip acousto-optic modulator, as a key component, occupies an exceptional position in microwave-to-optical conversion. Homogeneous thin-film lithium niobate i…
Isotropic Magnetic Purcell Effect
Tianhua Feng, Wei Zhang, Zixian Liang +2
Manipulating the spontaneous emission rate of optical emitters with all-dielectric nanoparticles benefits from their low-loss nature and thus provides relatively large extrinsic qu…
Unidirectional emission in an all-dielectric nanoantenna
Tianhua Feng, Wei Zhang, Zixian Liang +1
All-dielectric nanoantennas are a promising alternative to plasmonic optical antennas for engineering light emission because of their low-loss nature in the optical spectrum. Never…
Ideal magnetic dipole scattering
Tianhua Feng, Yi Xu, Wei Zhang +1
We introduce the concept of tunable ideal magnetic dipole scattering, where a nonmagnetic nanoparticle scatters lights as a pure magnetic dipole. High refractive index subwavelengt…
Space-coiling metamaterials with double negativity and conical dispersion
Zixian Liang, Tianhua Feng, Shukin Lok +7
Metamaterials are effectively homogeneous materials that display extraordinary dispersion. Negative index metamaterials, zero index metamaterials and extremely anisotropic metamate…