Not known Facts About Laser Crystal
Not known Facts About Laser Crystal
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These tables incorporate only the most common host crystals; lots of others exist, that happen to be fewer frequently employed.
These ions allow the crystal to amplify light-weight for the laser wavelength by means of stimulated emission, when Strength is supplied into the crystal through absorption of pump light (�?optical pumping
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The host medium influences strongly the wavelength, bandwidth and transition cross-sections of pump and laser transitions and likewise the upper-condition life span.
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。
g. a thin disk. As A further instance, Q-switched lasers access a greater populace density during the upper laser degree and so are therefore a lot more sensitive to quenching consequences and Power transfer processes; for that reason, a lessen doping density is often appropriate for these gadgets. For high-electricity lasers, decrease doping densities will often be utilized to Restrict the density of warmth era, Despite the fact that skinny-disk lasers do the job most effective with extremely doped crystals. A lot of laser products and solutions never get to the total functionality prospective since this kind of aspects have not been properly labored out.
The host crystal is way more than just a way to fix the laser-Lively ions at certain positions in Area. A variety of properties from the host content are crucial:
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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Distinct crystalline resources are really distinct relating to their hardness and also other properties, which decide with which solutions And just how conveniently they can be Lower and polished with high 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。