cw operation and nitric oxide spectroscopy using diode lasers of Pb1−xGex Te

Abstract
Cw operation at liquid‐helium temperatures of junction lasers fabricated from the IV‐VI alloy Pb1−xGexTe is reported. These lasers are current tunable and emit in the infrared between 4 and 6 μm. Preliminary high‐resolution spectra of nitric oxide recorded near 5.3 μm by using these lasers are reported.