G01N 21/65, G01J 3/44, G01J 3/021, A61B 5/1455, A61B 5/0075
An integrated approach to optical sensing (Ëcm3 excluding electronics) at concentrations of parts-per-million or less (ppm). The invention enables the trace detection of chemicals in fluids (gas or liquid) in a highly integrated package. The simultaneous detection of any number of Raman active molecular species (including isotopes) may be achieved in a scalable, low-cost manner.
Muller, Andreas, "Horizontally-scalable microcavity-enhanced raman scattering integrated platform for multigas chemical analysis" (2019). USF Patents. 1021.
University of South Florida