# Photonic time crystals: a materials perspective [Invited]

> Research article (Optics Express, 2023) · cited 59× · AI/ML

**Wikidata**: [openalex:W4317627116](https://www.wikidata.org/wiki/openalex:W4317627116)  
**Source**: https://4ort.xyz/entity/photonic-time-crystals-a-materials-perspective-invited