The Fact About Laser Crystal That No One Is Suggesting
The Fact About Laser Crystal That No One Is Suggesting
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These tables have only the commonest host crystals; several Other folks exist, which are significantly less routinely used.
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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。
Not surprisingly, it's very attractive that a given crystal good quality is made persistently, Though various laser patterns can have another sensitivity to materials parameters.
g. a skinny disk. As A further instance, Q-switched lasers arrive at a greater inhabitants density inside the upper laser amount and so are for that reason far more sensitive to quenching effects and Power transfer processes; consequently, a reduce doping density is usually appropriate for these gadgets. For prime-electricity lasers, reduced doping densities tend to be accustomed to Restrict the density of heat technology, Even though thin-disk lasers do the job finest with extremely doped crystals. Quite a few laser merchandise don't reach the entire overall performance possible mainly because these facts have not been appropriately labored out.
Laser modeling and simulation can be employed to reliably establish the ideal crystal Proportions, doping density And perhaps values of additional 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 happen to be passed by the laser beam are Commonly possibly oriented at Brewster's angle or have an anti-reflection coating.
Various crystalline components are really distinct about their hardness as well as other Qualities, which ascertain with which solutions And exactly how conveniently they may be Lower and polished with good quality.
The medium ought to have a high transparency (low absorption and scattering) in the wavelength regions of pump and laser radiation, and superior optical homogeneity. To some extent, this depends on the caliber of the material, based on specifics in the fabrication approach.
There is certainly a wide range of crystalline media, which can be grouped in accordance to special atomic constituents and crystalline structures. Some vital teams of crystals are:
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