# Ultra-Stable Molecular Sensors by Sub-Micron Referencing and Why They Should Be Interrogated by Optical Diffraction—Part I. The Concept of a Spatial Affinity Lock-in Amplifier

> Research article (Sensors, 2021) · cited 11× · AI/ML

**Wikidata**: [openalex:W3119791929](https://www.wikidata.org/wiki/openalex:W3119791929)  
**Source**: https://4ort.xyz/entity/ultra-stable-molecular-sensors-by-sub-micron-referencing-and-why-they-should-be-interrogated-by-optical-diffractionpart-