New Step by Step Map For Nonlinear Crystal
New Step by Step Map For Nonlinear Crystal
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Various crystalline products are certainly diverse about their hardness and other Qualities, which decide with which methods And just how conveniently they can be Minimize and polished with top 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 crystal is way more than simply a method to repair the laser-active ions at particular positions in space. Numerous Qualities in the host content are very important:
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For quasi-a few-stage laser achieve media and even three-amount achieve media, a single often really should Restrict the length to a worth that's also short for economical pump absorption, as reabsorption results would otherwise spoil the functionality. For side pumping, supplemental things to consider arrive into Participate in; Aside from effective pump absorption, it is crucial to obtain an acceptable spatial form of the achieve profile.
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A significant hurt threshold concerning pulse fluence or peak depth can be essential for prime-Power amplifiers.
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 on the achieve medium are most useful rely on quite a few elements. The obtainable pump source (sort of laser diode or lamp) plus the envisaged pumping arrangement are very important factors, but the fabric alone also has some influence. One example is, titanium–sapphire lasers have to be pumped with higher intensities, for which the shape of the transversely cooled rod, operated with rather modest pump and laser beam diameter, is a lot more appropriate than e.
It might be oriented for near perpendicular incidence of the laser beam, or at Brewster's angle. It might be set in certain strong mount which also acts like a heat sink. Larger crystals tend to be used for side pumping e.g. with large-ability diode bars.
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All those surfaces which are handed because of the laser beam are Generally either oriented at Brewster's angle or have an anti-reflection coating.
For numerous factors, composite crystals have become well-liked. These have a spatially different chemical composition and can be created with Particular 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。
With That idea, a person doesn't need an additional saturable absorber crystal, to make sure that one particular could make a lot more compact Q-switched laser setups with lower interior parasitic losses. Nonetheless, unwanted Unwanted side effects might also Nonlinear Crystal manifest, like acquiring unwelcome valence states of the associated ions or Electrical power transfers.
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It is obvious that different applications bring about pretty various needs on laser acquire media. For that reason, a wide variety of different crystals are employed, and building the appropriate preference is essential for constructing lasers with the best possible 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。