The Fact About Laser Crystal That No One Is Suggesting
The Fact About Laser Crystal That No One Is Suggesting
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The most common laser-Lively scarce earth ions and host media along with some usual emission wavelengths are demonstrated in the next table:
These ions enable the crystal to amplify light with the laser wavelength by way of stimulated emission, when Strength is supplied into the crystal through absorption of pump light (�?optical pumping
Laser crystals are optical crystals �?generally single crystals (monocrystalline optical elements) �?which can be made use of as gain media for stable-point out lasers. Normally, they are doped with either trivalent unusual earth ions or transition metal ions.
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：
激光晶体由发光中心和基质晶体两部分组成。大部分激光晶体的发光中心由激活离子构成，激活离子部分取代基质晶体中的阳离子形成掺杂型激光晶体。激活离子成为基质晶体组分的一部分时，则构成自激活激光晶体。
A substantial area high quality is naturally vital. Specifications of surface flatness are frequently a lot better than . This can help to stay away from both scattering losses and wavefront distortions which can degrade the laser's beam excellent. Also, scratch and dig requirements
The maximum attainable doping concentration can rely strongly on the host product and its fabrication approach.
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。
热膨胀和收缩系数对确定激光晶体的热透镜特性至关重要。最小化热透镜效应对于在广泛的操作温度范围内保持光束质量至关重要。
For quasi-3-level laser attain media as well as three-stage obtain media, one normally should Restrict the size to a worth which can be much too shorter for productive pump absorption, as reabsorption consequences would normally spoil the overall performance. For aspect pumping, additional issues occur into play; Aside from economical pump absorption, it is vital to get an appropriate spatial form of your gain profile.
Distinct crystalline materials are certainly various about their hardness along with other Attributes, which decide with which methods and how easily they may be cut and polished with top quality.
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There is certainly a wide array of crystalline media, that may be grouped get more info in accordance to big atomic constituents and crystalline structures. Some crucial 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。