What Does Laser Crystal Mean?
What Does Laser Crystal Mean?
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Laser modeling and simulation can be utilized to reliably ascertain the ideal crystal dimensions, doping density And perhaps values of further parameters.
The medium should have a substantial transparency (low absorption and scattering) inside the wavelength locations of pump and laser radiation, and good optical homogeneity. To some extent, this is determined by the standard of the material, based on details with the fabrication approach.
The host medium influences strongly the wavelength, bandwidth and transition cross-sections of pump and laser transitions and in addition the upper-condition lifetime.
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The most achievable doping focus can depend strongly to the host material and its fabrication system.
g. a thin disk. As One more case in point, Q-switched lasers achieve an increased population density while in the higher laser level and therefore are hence much more sensitive to quenching consequences and Power transfer processes; therefore, a lessen doping density is often appropriate for these gadgets. For prime-ability lasers, reduce doping densities are sometimes utilized to Restrict the density of heat generation, Though slim-disk lasers do the job best with very doped crystals. A lot of laser solutions never get to the full efficiency likely for the reason that this kind of particulars have not been effectively worked out.
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In addition, some adaptability is dropped in experiments if 1 simply cannot try out absorbers with different thickness or doping focus, as an example, without exchanging the laser crystal by itself.
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：
Which geometry, dopant and doping focus from the achieve medium are most useful rely on various factors. The offered pump resource (type of laser diode or lamp) as well as the envisaged pumping arrangement are crucial things, but the material itself also has some influence. By way of example, titanium–sapphire lasers ought to be pumped with high intensities, for which the form of a transversely cooled rod, operated with comparatively modest pump and laser beam diameter, is much more ideal than e.
These tables have only the most common host crystals; numerous Other people exist, that are much less often used.
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A couple of laser crystal elements happen to be shown where some saturable absorber substance is included for passive Q switching of a laser.
For several factors, composite crystals have gotten popular. These Possess a spatially different chemical composition and will be created with Exclusive styles.
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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Laser crystals are optical crystals �?usually one crystals (monocrystalline optical components) �?that are applied as acquire media for stable-state lasers. Usually, They're doped with both trivalent rare earth ions or transition steel 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。