蓝宝�?柱面�?球罩 偏振�?棱镜 红外光学元件 反射�?光学窗口 非球面镜 波片 分光镜
These ions enable the crystal to amplify light-weight with the laser wavelength by way of stimulated emission, when energy is equipped towards the crystal by way of absorption of pump light-weight (�?optical pumping
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The host medium influences strongly the wavelength, bandwidth and transition cross-sections of pump and laser transitions in addition to the higher-state life time.
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 higher populace density during the upper laser level and therefore are thus extra sensitive to quenching results and Electricity transfer procedures; hence, a reduce doping density is usually suitable for these units. For prime-electrical power lasers, reduced doping densities tend to be accustomed to Restrict the density of warmth era, While slender-disk lasers do the job best with highly doped crystals. Lots of laser products do not get to the entire functionality prospective mainly because this sort of particulars haven't been effectively labored out.
Laser modeling and simulation may be used to reliably determine the ideal 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 obvious that different programs bring on really distinctive needs on laser achieve media. For that reason, a broad selection of different crystals are employed, and producing the best selection is essential for developing lasers with ideal efficiency.
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 advancement optical overall performance uncommon earth ions transition group ions
The medium ought to have a substantial transparency (reduced absorption and scattering) in the wavelength areas of pump and laser radiation, and excellent optical homogeneity. To some extent, this depends upon the standard of the material, based on information of your fabrication process.
With that concept, one read more will not want an extra saturable absorber crystal, in order that a single could make much more compact Q-switched laser setups with lower interior parasitic losses. Having said that, undesired Uncomfortable side effects may additionally happen, such as acquiring unwanted valence states with the involved ions or Electrical power transfers.
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。