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设计了一种用于对SiO2、Si和LiNbO3等材料进行激光焊接的吸收薄膜。这种“金属-介质-金属”的三层吸收薄膜减少了夹在透明母料之间的焊料表面对Nd:YAG激光束的反射。该设计使激光能量在实验中的实际吸收率超过99%。这种吸收膜与焊料层的结合使激光能更有效地转化为热能,减少了激光穿透母料的能量,这样也就减少了因为激光的透射而导致母料损伤的可能性,使激光能量得到更有效的利用。同时,焊接成品的力学性能也得到了有效提高。
An absorbing film designed for laser welding of materials such as SiO2, Si and LiNbO3 was designed. This “metal-dielectric-metal” three-layer absorber film reduces the reflection of the Nd: YAG laser beam by the solder surface sandwiched between transparent masters. This design allows the actual absorption of laser energy in the experiment to exceed 99%. The combination of the absorbing film and the solder layer allows the laser energy to be more efficiently converted into heat energy, reducing the energy of the laser penetrating the masterbatch, thus reducing the possibility of damage to the masterbatch due to the laser transmission, causing the laser energy Get more efficient use. At the same time, the mechanical properties of welded products have also been effectively improved.