计算BBO晶体半波电压的小程序 用mathcad开发-BBO crystal half-wave voltage computing small program developed by mathcad

用于计算二类共线bbo晶体的角度计算，改变波长可以计算出不同的角度，并且给出了光锥图(For calculating the angle calculation of two kinds of collinear BBO crystals, different angles can be calculated by changing the wavelength, and the optical cone diagram is given)