Abstract: In this paper, we proposed two kinds of graded AlInGaN last quantum barrier (LQB) structures to improve the optical performance of deep ultraviolet laser diodes (DUV LDs). Through the ...

Abstract: In this paper, we report on a fibre-optic probe, coupled to a 404 nm laser-diode, as a fluorescence sensor for monitoring of commercial gasolines. The principle of operation of the sensor is ...