The Definitive Guide to Nonlinear Crystal
The Definitive Guide to Nonlinear Crystal
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Unique crystalline products are incredibly different about their hardness together with other Homes, which decide with which techniques And just how simply they are often Reduce 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 far more than simply a method to repair the laser-Lively ions at certain positions in space. Many Homes of your host substance are very important:
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。
For quasi-3-degree laser obtain media or simply three-level gain media, one particular generally ought to Restrict the length to a price that's much too shorter for productive pump absorption, as reabsorption results would or else spoil the effectiveness. For facet pumping, supplemental issues come into play; besides economical pump absorption, it is vital to get an appropriate spatial condition of the achieve profile.
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Additionally, some flexibility is lost in experiments if 1 simply cannot Check out absorbers with diverse thickness or doping concentration, for example, without the need of exchanging the laser crystal alone.
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 concentration with the gain medium are most beneficial count on various variables. The obtainable pump resource (type of laser diode or lamp) plus the envisaged pumping arrangement are important things, but the fabric alone also has some affect. Such as, titanium–sapphire lasers should be pumped with superior intensities, for which the shape of the get more info transversely cooled rod, operated with fairly little pump and laser beam diameter, is more acceptable than e.
These tables have only the most typical host crystals; numerous others exist, that are fewer commonly employed.
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Those surfaces that are passed with the laser beam are Commonly possibly oriented at Brewster's angle or have an anti-reflection coating.
For several factors, composite crystals are becoming well-liked. These have a spatially varying chemical composition and might be made 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。
With that concept, a single isn't going to want yet another saturable absorber crystal, to ensure 1 might make much more compact Q-switched laser setups with decreased interior parasitic losses. Nevertheless, unwanted Negative effects might also arise, such as getting undesirable valence states of the associated ions or Strength transfers.
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Laser crystals are optical crystals �?ordinarily solitary crystals (monocrystalline optical resources) �?which might be applied as get media for stable-condition lasers. Normally, They may be doped with either trivalent scarce earth ions or transition metal 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。