title: Deep Ultraviolet Light Emitting Diode (LED)-Based Sensing of Sulfur Dioxide.
abstract: With the recent development of deep ultraviolet (DUV) light emitting diodes (LEDs) comes the possibility of targeting absorption bands of several gases, including sulfur dioxide (SO2). SO2has strong absorption bands in the 300 nm spectral region. The low cost and small size of DUV LEDs, coupled with their spectral coverage, makes them viable sources for new gas sensors. Here, we demonstrate the capability to use absorption spectroscopy with a balanced detection scheme using a 300 nm DUV LED source for SO2detection at concentrations ranging from less than 1 ppm to 50 ppm.
authors: Department of Applied Ocean Physics and Engineering, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts, USA.
authors: Anna P M
authors: APM
authors: Michel
authors: Department of Applied Ocean Physics and Engineering, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts, USA.
authors: Jason
authors: J
authors: Kapit
keywords: LEDs; Light emitting diodes; UV; sensing; sulfur dioxide; ultraviolet