About Laser Crystal
About Laser Crystal
Blog Article
The most common laser-Lively exceptional earth ions and host media along with some regular emission wavelengths are shown in the next table:
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Laser crystals are optical crystals �?normally one crystals (monocrystalline optical components) �?which are utilised as gain media for reliable-point out lasers. Generally, These are doped with either trivalent rare earth ions or transition steel ions.
激光晶体中活性离子的作用是什么？ 活性离子在激光晶体中负责通过受激发射产生激光光线。
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：
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。
活性离子在激光晶体内发生的能量跃迁对激光操作至关重要。大多数激光操作都是通过四能级系统原理进行的，确保连续操作并防止浪费的非辐射衰变。
The maximum possible doping focus can depend strongly on the host material and its fabrication technique.
Laser modeling and simulation can be utilized to reliably determine the ideal crystal dimensions, doping density And perhaps values of supplemental parameters.
热膨胀和收缩系数对确定激光晶体的热透镜特性至关重要。最小化热透镜效应对于在广泛的操作温度范围内保持光束质量至关重要。
For quasi-3-level laser attain media or maybe three-amount achieve media, a single often should limit the size to a worth which can be too limited for efficient pump absorption, as reabsorption outcomes would or else spoil the general performance. For side pumping, further criteria come into play; Aside from economical pump absorption, it is vital to get an appropriate spatial form with the attain profile.
主体材料中活性离子掺杂物的数量是关键因素。它影响了激光的效率和性能。过低的浓度可能导致低输出，过高的浓度可能导致消光效应，降低晶体的效率。
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There's an array of crystalline media, which may be grouped according to get more info special atomic constituents and crystalline constructions. Some critical teams of crystals are:
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。