Considerations To Know About Laser Crystal
Considerations To Know About Laser Crystal
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These tables comprise only the commonest host crystals; numerous Other individuals exist, which are considerably less usually employed.
These ions allow the crystal to amplify mild for the laser wavelength by means of stimulated emission, when energy is supplied towards the crystal by way of absorption of pump mild (�?optical pumping
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激光晶体（laser crystal），可将外界提供的能量通过光学谐振腔转化为在空间和时间上相干的具有高度平行性和单色性激光的晶体材料。是晶体激光器的工作物质。
作为工业上使用较多的都是高掺钇铝石榴石，也就是说掺入不同的元素来达到不同的效果；作为工业激光，关注以下性能：
GWU gives all typical laser crystals (Nd:YVO4, Nd:YAG, Yb:YAG etc.) with a wide number of specifications. Other than the properly-established elements, progressive crystals with superb properties like Yb:CALGO can open up new horizons for demanding laser applications. Irrespective of no matter if unique parts for R & D purposes are needed or Value-productive numbers in little, medium or huge batches with in-time delivery to the output line are wanted: GWU’s devoted company helps to locate the finest core elements for your application.
A large surface excellent is needless to say important. Specs of surface flatness are frequently much better than . This assists to avoid both scattering losses and wavefront distortions which often can degrade the laser's beam top quality. Furthermore, scratch and dig technical specs
The most achievable doping concentration can count strongly within the host substance and its fabrication system.
激光晶体的效率在很大程度上依赖于某些属性，这些属性不仅限于其基本组成。这些特性决定了产生的激光光束的质量和随后的应用。
量子效率是发射光子数量与吸收光子数量的比率。高量子效率表明更大部分吸收能量被转化为激光光束，有助于提高激光的整体效率。
For quasi-three-level laser achieve media or perhaps a few-stage get media, 1 usually ought to Restrict the duration to a value that is also quick for successful pump absorption, as reabsorption consequences would in any other case spoil the efficiency. For facet pumping, supplemental things to consider come into Participate in; Moreover productive pump absorption, it can be crucial to get an acceptable spatial shape on the obtain profile.
Distinctive crystalline supplies are very unique about their hardness and various Homes, which figure out with which solutions and how quickly they can be Minimize and polished with top quality.
The medium ought to have a superior transparency (low absorption and scattering) from the wavelength locations of pump and laser radiation, and very good optical homogeneity. To Laser Crystal some extent, this relies on the caliber of the material, determined by specifics in the fabrication process.
You can find a wide array of crystalline media, which can be grouped according to special atomic constituents and crystalline constructions. Some critical groups of crystals are:
激光晶体（laser crystal），可将外界提供的能量通过光学谐振腔转化为在空间和时间上相干的具有高度平行性和单色性激光的晶体材料。是晶体激光器的工作物质。