Technical basis of this new opal quartz material production some technical improvements and their effects were presented.

The yellow cord is a kind of defect that appears in the opal glass production.

The preparation of the ceramic-type containers with opal glass which was melted in electric furnance,substitutes for the traditional production technology of ceramics.

Crystallization kinetics of different morphologies of fused silica glass;

Investigation on the improvement of grinding efficiency and surface quality of genus silica glass;

Surface topography of four types of silica glasses etched by hydrofluoric acid was investigated systematically,and also the effect of surface machining on etched surface quality of silica glass.

Study on the preparation of electroless Ni-P alloy plating on the surface of quartz glass;

Analysis of temperature field and thermal stress field in quartz glass heated by laser beams;

Study on the optical property of quartz glass and Al film reflector under charged particles irradiation;

Experimental and theoretical study on the ablation of fused silica by femtosecond lasers;

In this paper, reported is the experimental results of the electroinduced second order non linear polarization in fused silica and its thermal erasure.

The characteristics of the defects in fused silica are reviewed, and possible mechanism of infrared femtosecond laser inducing defects in silica glass is analyzed.