New Step by Step Map For Nonlinear Crystal
New Step by Step Map For Nonlinear Crystal
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Various crystalline supplies are certainly various about their hardness and other properties, which ascertain with which approaches And just how very easily they may be Minimize and polished with good quality.
The medium should have a high transparency (low absorption and scattering) from the wavelength regions of pump and laser radiation, and superior optical homogeneity. To some extent, this depends upon the caliber of the fabric, determined by specifics of your fabrication method.
The host crystal is considerably more than simply a method to fix the laser-active ions at specific positions in House. A number of Houses of the host substance are essential:
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 doable doping focus can depend strongly around the host substance and its fabrication strategy.
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A superior destruction threshold website with regards to pulse fluence or peak intensity can be essential for prime-Electricity 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 with the get medium are most beneficial count on a number of aspects. The obtainable pump supply (variety of laser diode or lamp) as well as envisaged pumping arrangement are crucial things, but the fabric alone also has some influence. As an example, titanium–sapphire lasers should be pumped with significant intensities, for which the form of a transversely cooled rod, operated with relatively little pump and laser beam diameter, is much more correct than e.
These tables contain only the most common host crystals; numerous Other folks exist, which might be less frequently utilized.
The commonest laser-Lively uncommon earth ions and host media together with some standard emission wavelengths are proven in the next desk:
Those surfaces which happen to be passed by the laser beam are Commonly either oriented at Brewster's angle or have an anti-reflection coating.
For numerous motives, composite crystals are becoming well known. These Possess a spatially different chemical composition and will be made with Specific 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。
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It is obvious that unique applications cause pretty distinct necessities on laser gain media. For that reason, a wide range of different crystals are employed, and generating the ideal option is important for setting up lasers with ideal general performance.
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。