LITTLE KNOWN FACTS ABOUT HGGA2S4 CRYSTAL.

053 μm. The absorption spectrum of ammonia was introduced to exhibit the feasibility on the made optical parametric oscillator technique for spectroscopic measurements and gasoline detection.We report with a femtosecond optical parametric oscillator (OPO) for the deep-infrared (deep-IR) determined by the Kerr-lens-mode-locked Ti:sapphire laser giv