Observation of valley Landau-Zener-Bloch oscillations and pseudospin imbalance in photonic graphene
We demonstrate intervalley Bloch oscillation (BO) and Landau-Zener tunneling (LZT) in an optically induced honeycomb lattice with a refractive-index gradient. Unlike previously observed BO in a gapped square lattice, we show nonadiabatic beam dynamics that are highly sensitive to the direction of th...
| Principais autores: | , , , , , , |
|---|---|
| Outros Autores: | |
| Formato: | Journal Article |
| Idioma: | English |
| Publicado em: |
2018
|
| Assuntos: | |
| Acesso em linha: | https://hdl.handle.net/10356/87902 http://hdl.handle.net/10220/45605 |