The smart Trick of Laser Crystal That No One is Discussing
The smart Trick of Laser Crystal That No One is Discussing
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These tables contain only the commonest host crystals; many Other folks exist, that are less often utilised.
These ions empower the crystal to amplify gentle within the laser wavelength by using stimulated emission, when Electrical power is provided into the crystal via absorption of pump light-weight (�?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。
Which geometry, dopant and doping focus on the attain medium are most beneficial rely upon various things. The obtainable pump source (form of laser diode or lamp) plus the envisaged pumping arrangement are very important things, but the material by itself also has some influence. For example, titanium–sapphire lasers ought to be pumped with higher intensities, for which the shape of the transversely cooled rod, operated with somewhat small pump and laser beam diameter, is a lot more proper than e.
晶体的光学质量对激光器的有效运行至关重要。晶体中的缺陷或杂质可能导致光散射、吸收甚至损坏晶体。高光学质量确保了稳定和高质量的激光束。
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 achievable doping concentration can count strongly to the check here host materials and its fabrication technique.
Some laser crystal components are actually demonstrated exactly where some saturable absorber substance is included for passive Q switching of the laser.
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。
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材料 激光晶体 晶体生长 光学性能 稀土离子 过渡族离子 supplies laser crystal crystal advancement optical functionality unusual earth ions changeover group ions
For several motives, composite crystals are becoming common. These Have a very spatially various chemical composition and might be designed with Specific styles.
It might be oriented for near perpendicular incidence in the laser beam, or at Brewster's angle. It may be mounted in a few reliable mount which also functions to be a warmth sink. Larger crystals are frequently useful for aspect pumping e.g. with superior-energy 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。