Exfoliated flakes of van der Waals materials embedded in tailored electromagnetic environments can form intrinsic optical self-cavities, but the influence of this effect on their nonlinear optoelectronic properties at THz frequencies remains unexplored. Here, the authors report self-cavity-induced Purcell enhancement of directional edge photocurrents in WTe2.
- Xinyu Li
- Jesse Hagelstein
- James W. McIver