3 papers
physics.optics2024★ 1 cited
Beam shaping by nonlinear moiré metasurfaces
Lun Qu, Wei Wu, Di Zhang +7
This paper explores the interplay of momentum transfer and nonlinear optical processes through moiré phenomena. Momentum transfer plays a crucial role in the interaction between ph…
physics.optics2024
Electro-optically Modulated Nonlinear Metasurfaces
Zhengqing He, Lun Qu, Wei Wu +10
Tunable nonlinearity facilitates the creation of reconfigurable nonlinear metasurfaces, enabling innovative applications in signal processing, light switching, and sensing. This pa…
physics.optics2023
Bright Second Harmonic Emission from Photonic Crystal Vertical Cavity
Lun Qu, Zhidong Gu, Chenyang Li +12
We present a study on photonic vertical cavities consisting of nonlinear materials embedded in photonic crystals (PhCs) for resonantly enhancing second harmonic generation (SHG). P…