# Simultaneous super-linear excitation-emission and emission depletion allows imaging of upconversion nanoparticles with higher sub-diffraction resolution

> Research article (Optics Express, 2020) · cited 24× · AI/ML

**Wikidata**: [openalex:W3044761677](https://www.wikidata.org/wiki/openalex:W3044761677)  
**Source**: https://4ort.xyz/entity/simultaneous-super-linear-excitation-emission-and-emission-depletion-allows-imaging-of-upconversion-nanoparticles-with-h