3 papers
physics.optics2025
Enhanced Tunable Photon Pair Generation from Nonlinear Metasurface with Guided-Mode Cavity
Tongmiao Fan, Jihua Zhang, Andrey A. Sukhorukov
The ability to generate quantum entangled photon pairs through spontaneous parametric down conversion (SPDC) is playing a pivotal role in many applications in quantum technologies,…
physics.optics2025
Broadband bright biphotons from periodically poled triple-resonance metasurface
Jihua Zhang, Chaoxin Shi, Jinyong Ma +5
Biphotons from spontaneous parametric down conversion with broad bandwidth are highly wanted in many quantum technologies. However, achieving broad bandwidth in both frequency and…
physics.optics2024
Angle multifunctional dichroism in metasurfaces
Neuton Li, Jihua Zhang, Dragomir Neshev +1
We demonstrate metasurfaces with strong polarization dichroism that depends on the angle of incidence. We present original designs obtained through topology optimization that selec…