About Laser Crystal
About Laser Crystal
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These tables include only the commonest host crystals; several Many others exist, which might be much less commonly used.
These ions enable the crystal to amplify light-weight in the laser wavelength by using stimulated emission, when Electricity is provided towards the crystal via absorption of pump gentle (�?optical pumping
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。
激光晶体的损伤阈值与其能承受的最大光强有关，而不会遭受物理或结构损伤。高损伤阈值对于确保高功率激光应用的耐久性和长寿命至关重要。
g. a thin disk. As Yet another case in point, Q-switched lasers achieve an increased inhabitants density inside the upper laser degree and so are therefore much more sensitive to quenching outcomes and Electricity transfer procedures; therefore, a Laser Crystal reduce doping density is usually appropriate for these units. For top-power lasers, lower doping densities tend to be used to limit the density of heat technology, although thin-disk lasers function very best with very doped crystals. Several laser items usually do not reach the full performance possible because such details haven't been effectively labored out.
激光晶体的效率在很大程度上依赖于某些属性，这些属性不仅限于其基本组成。这些特性决定了产生的激光光束的质量和随后的应用。
量子效率是发射光子数量与吸收光子数量的比率。高量子效率表明更大部分吸收能量被转化为激光光束，有助于提高激光的整体效率。
It is apparent that various applications produce very different requirements on laser gain media. For this reason, a broad selection of different crystals are employed, and producing the best decision is essential for constructing lasers with the best possible effectiveness.
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。
For different explanations, composite crystals have gotten common. These Have got a spatially different chemical composition and will be manufactured with Specific designs.
It could be oriented for in the vicinity of perpendicular incidence of the laser beam, or at Brewster's angle. It may be preset in certain good mount which also functions for a warmth sink. Much larger crystals usually are employed for aspect pumping e.g. with large-electric power diode bars.
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。