Thermal Gradient Induced Transparency and Absorption in a Microcavity (Laser Photonics Rev. 17(2)/2023)

Optical Microcavities In article number 2200644, Lei Shi and colleagues propose and demonstrate thermal gradient induced transparency (TGIT) and absorption (TGIA) effects in a single functionalized microcavity. This novel platform can be used as a probe to realize a direct temperature readout from the transmission spectrum via multiple TGIT/TGIA‐based photonic barcodes with a high detection resolution of 9 × 10−4 °C.