Stock BBO crystals sale Below is a partial stock of BBO crystal for type II THG. Please e-mail us for current stock availability and pricing. BBO crystal for type II THG. 1040.0(e)+ 520.0(o)= 346.7(e) At theta = 39.6 deg., phi=30deg. 1030.0(e)+ 515.0(o)= 343.3(e) At theta = 40.1 deg.., phi=30deg. A-Star Optics offers a complete portfolio […]