The Ultimate Guide To Nonlinear Crystal
The Ultimate Guide To Nonlinear Crystal
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Distinct crystalline materials are extremely distinctive concerning their hardness and other Attributes, which decide with which solutions and how conveniently they can be Slash and polished with good quality.
The medium should have a high transparency (low absorption and scattering) in the wavelength locations of pump and laser radiation, and very good optical homogeneity. To some extent, this depends upon the standard of the fabric, based on aspects on the fabrication course of action.
The host crystal is far more than simply a way to repair the laser-active ions at selected positions in Area. Quite a few Attributes of the host material are 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。
The maximum attainable doping focus can rely strongly around the host content and its fabrication approach.
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A significant destruction threshold with regards to pulse fluence or peak intensity can be critical for top-energy 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 concentration with the attain medium are most useful depend on numerous components. The available pump source (sort of laser diode or lamp) and also the envisaged pumping arrangement are very important aspects, but the material by itself also has some influence. Such as, titanium–sapphire lasers ought to be pumped with higher intensities, for which the form of the transversely cooled rod, operated with rather tiny pump and laser beam diameter, is much more proper than e.
It may be oriented for close to perpendicular incidence on the laser beam, or at Brewster's angle. It can be fastened in certain reliable mount which also functions for a heat sink. More substantial crystals usually are utilized for side pumping e.g. with high-ability diode bars.
The most common laser-Lively unusual earth ions and host media along with some usual emission wavelengths are shown in the next table:
Some laser crystal resources are already shown the place some saturable absorber content is integrated for passive click here Q switching of a laser.
For many explanations, composite crystals have gotten common. These have a spatially various chemical composition and can be made with Distinctive designs.
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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Laser crystals are optical crystals �?usually single crystals (monocrystalline optical materials) �?which are used as attain media for good-condition lasers. Normally, They may be doped with possibly 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。