Detailed Notes on Laser Crystal
Detailed Notes on Laser Crystal
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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（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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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。
Naturally, it is vitally attractive that a supplied crystal excellent is made consistently, Whilst unique laser patterns can have a unique sensitivity to content parameters.
亚稳态寿命也起着重要作用。较长的寿命允许更多的储能和实现粒子数反转的更高潜力，这对激光动作至关重要。
Laser modeling and simulation can be utilized to reliably ascertain the optimum crystal Proportions, doping density and possibly values of more 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。
It is clear that different applications bring on incredibly distinctive requirements on laser gain media. Because of this, a broad range of various crystals are made use of, and earning the ideal alternative is important for constructing lasers with the best possible general performance.
材料 激光晶体 晶体生长 光学性能 稀土离子 过渡族离子 resources laser crystal crystal growth optical performance scarce earth ions changeover team ions
The medium ought to have a large transparency (low absorption and scattering) from the wavelength regions of pump and laser radiation, and fantastic optical homogeneity. To some extent, this is determined by the standard of the material, determined by aspects in the fabrication system.
With that concept, a single will not require an additional saturable absorber crystal, so that a single may possibly make a lot more compact Q-switched laser setups with reduce interior parasitic losses. On the other hand, undesirable Negative effects may also come about, including getting unwanted valence states with the involved ions or more info Electricity transfers.
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