2.The Al_2O_3 passivation thin films with the thickness of 0.75(λ/2)and(λ/2) respectively are coated on the two mirror faces of the visible laser by electron beam vapourization. The effect of the coating films on laser performances is analysed.
3.In the long time development, Jingdezhen porcelain has been formed its own four special features, that is, “White like jade, bright as a mirror, thin as paper, sound like a chime.
