Open access
Sep 2026
Quantum-well metasurface for free-space-accessible enhanced nonlinear polarization.
Nonlinear frequency conversion underpins important technologies such as telecommunications and quantum computation; however, weak nonlinearities and architectures that resist miniaturization currently limit devices' efficiency and widespread adoption. Here we combine a band-structure-engineered GaAs/AlGaAs multi-quantu...
Pernille Undrum Fathi, Irene Occhiodori, P. Devaney et al.
· Nature Nanotechnology · 0 citations