WHAT DOES HGGA2S4 CRYSTAL MEAN?

Optical parametric oscillator pumped at ~1 µm with intracavity mid-IR distinction-frequency era in OPGaAsOne observes a spectacular boost in era of the 2nd harmonic in addition to the demodulation indicators compared to the pump wave amplitude. A transparent correlation exists among these nonlinear signatures and the quantity of damages. Prelimina