# Anisotropic Fermat’s principle for controlling hyperbolic van der Waals polaritons

> Research article (Photonics Research, 2022) · cited 14× · AI/ML

**Wikidata**: [openalex:W4289653738](https://www.wikidata.org/wiki/openalex:W4289653738)  
**Source**: https://4ort.xyz/entity/anisotropic-fermats-principle-for-controlling-hyperbolic-van-der-waals-polaritons