Trace gas detection with antimonide-based quantum-well diode lasers.
Widely tunable GaInAsSb/AlGaAsSb quantum well (QW) lasers have been grown by molecular beam epitaxy on GaSb substrates. Their emission wavelength, from 2.0 to 2.5 microm, make them suitable for the detection of many gas species in the wavelength range which corresponds to an atmospheric transmission window. Using these devices an experimental setup for open path gas detection has been developed.
D000965:Antimony / Q000737:chemistry*; D005740:Gases / Q000032:analysis*; D013053:Spectrophotometry / Q000295:instrumentation*; D013696:Temperature
D005740:Gases; D000965:Antimony