Rumored Buzz on Nonlinear Crystal
Rumored Buzz on Nonlinear Crystal
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Distinct crystalline materials are really distinct relating to their hardness along with other Attributes, which decide with which solutions And the way quickly they can be Lower 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 medium influences strongly the wavelength, bandwidth and transition cross-sections of pump and laser transitions as well as the upper-state lifetime.
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。
The most achievable doping focus can depend strongly to the host material and its fabrication system.
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In addition, some overall flexibility is misplaced in experiments if one are not able to Check out absorbers with distinct thickness or doping focus, one example is, with out 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 focus in the get medium are most advantageous depend upon quite a few elements. The accessible pump resource (type of laser diode or lamp) along with the envisaged pumping arrangement are crucial factors, but the material by itself also has some impact. Such as, titanium–sapphire lasers need to be pumped with more info large intensities, for which the shape of the transversely cooled rod, operated with rather small pump and laser beam diameter, is more proper than e.
These tables contain only the most common host crystals; lots of Many others exist, which are fewer routinely applied.
The most typical laser-active rare earth ions and host media along with some regular emission wavelengths are demonstrated in the following desk:
Individuals surfaces which are passed by the laser beam are Generally possibly oriented at Brewster's angle or have an anti-reflection coating.
For many factors, composite crystals are becoming common. These Have a very spatially various chemical composition and can be built with special shapes.
There's an array of crystalline media, which can be grouped in accordance to big atomic constituents and crystalline buildings. Some vital teams of crystals are:
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Laser crystals are optical crystals �?ordinarily solitary crystals (monocrystalline optical supplies) �?that are applied as obtain media for good-state lasers. Generally, They are really doped with both trivalent unusual earth ions or changeover 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。