Laser Crystal No Further a Mystery
Laser Crystal No Further a Mystery
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These tables incorporate only the commonest host crystals; many Other individuals exist, which happen to be much less usually made use of.
激光晶体的极化性能可能会影响输出激光束的质量和特性。有些激光晶体产生线性偏振光，这对某些应用可能有益。
Laser crystals are optical crystals �?commonly solitary crystals (monocrystalline optical elements) �?which might be utilised as obtain media for strong-point out lasers. Usually, They're doped with either trivalent exceptional earth ions or transition metallic 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。
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A high floor high quality is not surprisingly crucial. Specifications of floor flatness tend to be much better than . This assists to stay away from equally scattering losses and wavefront distortions which can degrade the laser's beam good quality. On top of that, scratch and dig technical specs
g. a skinny disk. As another example, Q-switched lasers attain the next population density in the higher laser amount and so are thus much more sensitive to quenching consequences and energy transfer processes; as a result, a reduced doping density is often more info appropriate for these units. For prime-energy lasers, reduce doping densities are frequently accustomed to limit the density of warmth era, Whilst slender-disk lasers function ideal with remarkably doped crystals. Quite a few laser merchandise don't get to the full efficiency potential mainly because such specifics haven't been effectively labored out.
Laser modeling and simulation can be used to reliably identify the optimum crystal dimensions, doping density And perhaps values of added parameters.
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。
People surfaces that are handed through the laser beam are Typically both oriented at Brewster's angle or have an anti-reflection coating.
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The medium should have a higher transparency (reduced absorption and scattering) inside the wavelength regions of pump and laser radiation, and good optical homogeneity. To some extent, this will depend on the standard of the fabric, determined by information on the fabrication approach.
With That idea, a single does not will need an extra saturable absorber crystal, to make sure that one particular may make far more compact Q-switched laser setups with reduced inside parasitic losses. On the other hand, undesired Unwanted effects may arise, which include getting unwelcome valence states of the involved ions or Strength transfers.
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。