Front Cover: Using Fiber Bragg Grating Sensors to Quantify Temperature Non‐Uniformities in Plasmonic Catalyst Beds under Illumination (ChemPhotoChem 4/2022)

The Front Cover image represents an optical temperature sensor based on fiber Bragg gratings which enables accurate temperature measurements at various positions inside an illuminated plasmonic catalyst bed. More information can be found in the Research Article by Man Xu, Pascal Buskens and co‐workers.