Laser Crystal No Further a Mystery
Laser Crystal No Further a Mystery
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These tables consist of only the most common host crystals; a lot of others exist, which happen to be fewer usually employed.
激光晶体的极化性能可能会影响输出激光束的质量和特性。有些激光晶体产生线性偏振光，这对某些应用可能有益。
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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 skinny disk. As Yet another case in point, Q-switched lasers attain an increased inhabitants density inside the upper laser stage and they are consequently far more delicate to quenching consequences and energy transfer procedures; consequently, a decreased doping density is usually appropriate for these units. For prime-electric power lasers, decreased doping densities are often utilized to Restrict the density of warmth era, Despite the fact that skinny-disk lasers operate ideal with very doped crystals. Several laser items don't reach the comprehensive general performance probable mainly because these kinds of particulars haven't been appropriately labored out.
The host crystal is a great deal more than just a means to fix the laser-Energetic ions at certain positions in Area. Quite a few Attributes with the host product are important:
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It is obvious that various purposes produce quite distinctive needs on laser gain media. For this check here reason, a wide vary of various crystals are utilised, and generating the correct 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 elements laser crystal crystal advancement optical overall performance unusual earth ions changeover group ions
The medium ought to have a significant transparency (minimal absorption and scattering) within the wavelength locations of pump and laser radiation, and excellent optical homogeneity. To some extent, this depends on the caliber of the material, determined by details on the fabrication procedure.
With that concept, a single will not need to have an extra saturable absorber crystal, to ensure a single could make additional compact Q-switched laser setups with decrease inner parasitic losses. However, unwelcome Unintended effects may additionally take place, such as acquiring unwelcome valence states on the involved ions or Electricity 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。