Detailed Notes on Laser Crystal
Detailed Notes on Laser Crystal
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Laser modeling and simulation may be used to reliably determine the the best possible crystal Proportions, doping density and possibly values of extra parameters.
The medium ought to have a large transparency (small absorption and scattering) within the wavelength areas of pump and laser radiation, and superior optical homogeneity. To some extent, this is determined by the quality of the material, determined by aspects from the fabrication course of action.
The host medium influences strongly the wavelength, bandwidth and changeover cross-sections of pump and laser transitions and likewise the higher-state lifetime.
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For quasi-3-amount laser obtain media or even three-stage achieve media, a person usually really should Restrict the length to a price which happens to be as well quick for successful pump absorption, as reabsorption effects would in any other case spoil the general performance. For facet pumping, extra criteria arrive into Perform; Aside from successful pump absorption, it is crucial to acquire an appropriate spatial form from the acquire profile.
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Additionally, some versatility is lost in experiments if just one simply cannot try out absorbers with various thickness or doping focus, as an example, without the need of exchanging the laser crystal alone.
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：
晶体生长 晶体加工 镀膜能�?品质管理 研发能力 新闻中心
These tables include only the commonest host crystals; many Other individuals exist, that are a lot less frequently utilised.
The most typical laser-Energetic scarce earth ions and host media together with some usual emission wavelengths are demonstrated in the following desk:
These surfaces which might be handed by the laser beam are Typically both oriented at Brewster's angle or have an anti-reflection coating.
For various reasons, composite crystals are becoming popular. These Have a very spatially various chemical composition and may be manufactured with Distinctive designs.
There is a wide array of crystalline media, which may be grouped in accordance to special atomic constituents and crystalline structures. Some important teams of crystals are:
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It is clear that different programs lead to very various demands on laser attain media. For that reason, a wide array of various crystals are applied, and earning the right option is essential for constructing lasers with the best possible general performance.
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。