The best Side of Laser Crystal
The best Side of Laser Crystal
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Diverse crystalline supplies are very diverse concerning their hardness and other Houses, which determine with which approaches And exactly how very easily they may be Reduce and polished with high quality.
人造红宝石激光晶体是首次实现激光输出的材料。可用焰熔法、提拉法或助熔剂法生产单晶。用提拉法容易获得大尺寸优质晶体。
The host medium influences strongly the wavelength, bandwidth and transition cross-sections of pump and laser transitions and also the upper-state lifetime.
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For quasi-three-level laser attain media or simply a few-degree acquire media, 1 often really should Restrict the size to a value which happens to be far too limited for effective pump absorption, as reabsorption consequences would usually spoil the functionality. For aspect pumping, extra considerations occur into Engage in; In addition to economical pump absorption, it is crucial to obtain an appropriate spatial condition on the gain profile.
g. a skinny disk. As An additional illustration, Q-switched lasers attain an increased inhabitants density inside the higher laser amount and therefore are thus more sensitive to quenching outcomes and energy transfer processes; for that reason, a lessen doping density is usually appropriate for these products. For top-energy lasers, reduced doping densities will often be used to limit the density of heat generation, Though slim-disk lasers get the job done best with extremely doped crystals. Several more info laser solutions will not get to the comprehensive performance possible since these kinds of specifics have not been properly labored out.
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In addition, some overall flexibility is misplaced in experiments if 1 can't Check out absorbers with diverse thickness or doping concentration, one example is, without having exchanging the laser crystal itself.
These ions empower the crystal to amplify light with the laser wavelength by using stimulated emission, when Vitality is equipped towards the crystal by means of absorption of pump light-weight (�?optical pumping
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These tables consist of only the commonest host crystals; quite a few Some others exist, which might be fewer commonly applied.
The most typical laser-Energetic rare earth ions and host media together with some regular emission wavelengths are proven in the following desk:
Individuals surfaces that are handed via the laser beam are Typically either oriented at Brewster's angle or have an anti-reflection coating.
For a variety of good reasons, composite crystals are getting to be popular. These Use a spatially various chemical composition and may be manufactured with Exclusive designs.
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。
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It is obvious that diverse purposes cause extremely distinctive prerequisites on laser obtain media. Due to this, a broad selection of various crystals are employed, and producing the best decision is important for constructing lasers with optimum functionality.
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。