The best Side of Laser Crystal
The best Side of Laser Crystal
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Diverse crystalline elements are very distinctive relating to their hardness and other Attributes, which ascertain with which approaches and how conveniently they are often Reduce and polished with good quality.
The medium must have a higher transparency (reduced absorption and scattering) in the wavelength areas of pump and laser radiation, and great optical homogeneity. To some extent, this depends on the quality of the material, based on specifics of the fabrication approach.
The host medium influences strongly the wavelength, bandwidth and transition cross-sections of pump and laser transitions and also the upper-point out life span.
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The maximum doable doping focus can rely strongly to the host substance and its fabrication process.
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A large destruction threshold with regards to pulse fluence or peak intensity can be vital for high-Strength 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 in the achieve medium are most advantageous count on quite a few components. The offered pump source (variety of laser diode or lamp) as well as envisaged pumping arrangement are essential factors, but the fabric itself also has some affect. For example, titanium–sapphire lasers should be pumped with substantial intensities, for which the shape of a transversely cooled rod, operated with rather tiny pump and laser beam diameter, is a lot more ideal than e.
These tables include only the commonest host crystals; a lot of Other individuals exist, that are fewer usually made use of.
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Individuals surfaces that happen to be passed through the laser beam are Typically either oriented at Brewster's angle or have an anti-reflection coating.
Needless to say, it is vitally appealing that a specified crystal high quality is generated regularly, Despite the fact that different laser types might have a different sensitivity to materials parameters.
There may be a variety of crystalline media, that may be grouped in accordance to important atomic constituents and crystalline structures. Some essential groups of crystals are:
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It is obvious that distinct purposes bring on really distinctive needs on laser gain media. Due to this, a broad vary of different crystals here are used, and building the best selection is important for setting up 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。