# Mid-spatial frequency removal on aluminum free-form mirror

> Research article (Optics Express, 2019) · cited 28× · AI/ML

**Wikidata**: [openalex:W2969839452](https://www.wikidata.org/wiki/openalex:W2969839452)  
**Source**: https://4ort.xyz/entity/mid-spatial-frequency-removal-on-aluminum-free-form-mirror