Laser Crystal for Dummies
Laser Crystal for Dummies
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The most common laser-active scarce earth ions and host media along with some standard emission wavelengths are shown in the next table:
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激光晶体是固态激光器的核心。它们是光放大发生的媒介，产生激光束。在这篇全面指南中，我们深入探讨激光晶体的世界。
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。
The host medium influences strongly the wavelength, bandwidth and transition cross-sections of pump and laser transitions in addition to the upper-state life time.
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。
Of course, it is rather desirable that a provided crystal high-quality is generated regularly, While various laser layouts can have a unique sensitivity to product parameters.
The most possible doping concentration can depend strongly over the host product and its fabrication system.
Laser modeling and simulation may be used to reliably establish the ideal crystal Proportions, doping density And perhaps values of extra 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-three-stage laser obtain media and even 3-degree attain media, one generally ought to Restrict the size to a price and that is also quick for successful pump absorption, as reabsorption outcomes would otherwise spoil the effectiveness. For aspect pumping, additional criteria come into Engage in; Moreover economical pump absorption, more info it is important to obtain an appropriate spatial form in the obtain profile.
Various crystalline components are incredibly diverse concerning their hardness and other Qualities, which ascertain with which techniques And the way conveniently they may be Slash and polished with top quality.
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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。