3 papers
physics.optics2025
Stimulated Forward Brillouin Scattering in Subwavelength Silicon Membranes
Paula Nuño Ruano, Paula Nuño Ruano, Jianhao Zhang +8
Brillouin scattering enables efficient and coherent conversion between optical photons and gigahertz-frequency phonons. Integrated circuits that harness this nonlinear interaction…
physics.optics2024
Perfectly vertical silicon metamaterial grating couplers with large segmentation periods up to 650 nm
Jianhao Zhang, Daniele Melati, Yuri Grinberg +7
Perfectly vertical grating couplers leveraging metamaterials can achieve both high coupling efficiency and minimal back reflection. The fabricability of these designs, with segment…
physics.optics2024
Extending the spectral operation of multimode and polarization-independent power splitters through subwavelength nanotechnology
Raquel Fernández de Cabo, David González-Andrade, Pavel Cheben +1
Power splitters play a crucial role in virtually all photonic circuits, enabling precise control of on-chip signal distribution. However, state-of-the-art solutions typically prese…