Davis, Samuel and Mamic, Katarina and Bentley, Matthew and Fletcher, Josh and Craig, Adam and Zhuang, Qiandong and Carrington, Peter and Marshall, Andrew (2025) Controlled linewidth broadening of resonant cavity light emitting diodes for enhanced spectral sensing in the short-wave infrared. In: Proceedings Volume 13674, Electro-Optical and Infrared Systems: Technology and Applications XXII :. SPIE.
Full text not available from this repository.Abstract
The extended short-wave infrared (e-SWIR, 1700 to 2500nm) features absorption peaks for a variety of commercially important compounds, making it an attractive region for the development of spectral sensing. Reconstructive spectrometers offer a novel route to miniaturised e-SWIR spectrometry, and recent research has shown that LED arrays providing a tunable composite light source are highly desirable for these systems. Resonant cavity-enhanced LEDs (RCLEDs) can improve the directionality, intensity, and temperature-stability of these arrays whilst avoiding the introduction of complex driving requirements. We report on a InGaAsSb/AlGaAsSb quantum well RCLED exhibiting room-temperature emission at 2160nm with a full width at half maximum of 97nm and temperature stability of 0.443 nmK−1.