Difference frequency generation of CO and CO2 lasers in Pbln6Te10 crystal

PbIn
₆
Te
₁₀
is a new nonlinear material with main transparency window 1.7-31 μm. For the first time optical properties were studied in the THz region, as well as DFG of CO and CO2 laser theoretically and experimentally. The simulation indicated that DFG spectrum can contain dozens of strong lines within 10-13 μm at fixed phase-matching angle. As well CO and CO
₂
laser lines can be down-converted, respectively, into 110-1000 and 200-1000 μm range. CO laser and CO2 laser conversion efficiency into the mid-IR domain was up to ~10
^-6
.