A tunable laser-based mid-infrared source for use in trace gas detection
A new widely tunable mid-infrared (IR) source based on difference-frequency generation (DFG) in Gallium Selenide (GaSe) for use in high-resolution spectroscopy and trace gas detection is described. The characteristics of type-I phasematching in GaSe are studied. Preliminary results on the improvement of the dispersion relations for GaSe are presented. Spectroscopic feasibility experiments are reported that involve the spectroscopy of ethylene
Wang, Shunxi. "A tunable laser-based mid-infrared source for use in trace gas detection." (1997) Master’s Thesis, Rice University. https://hdl.handle.net/1911/17141.