Laser Crystal Secrets
Laser Crystal Secrets
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Laser crystals are optical crystals �?commonly single crystals (monocrystalline optical components) �?that are employed as obtain media for good-state lasers. Usually, They may be doped with possibly trivalent uncommon earth ions or transition metallic ions.
Also, some adaptability is missing in experiments if a person simply cannot Check out absorbers with unique thickness or doping concentration, by way of example, with no exchanging the laser crystal by itself.
作为工业上使用较多的都是高掺钇铝石榴石，也就是说掺入不同的元素来达到不同的效果；作为工业激光，关注以下性能：
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。
亚稳态寿命也起着重要作用。较长的寿命允许更多的储能和实现粒子数反转的更高潜力，这对激光动作至关重要。
Some laser crystal supplies are actually demonstrated the place some saturable absorber product is incorporated for passive Q switching of a laser.
激光晶体的核心由固态晶体材料组成，通常掺杂了某些能够通过受激发射产生光放大的离子。这些离子的性质对激光晶体的性能起决定作用。
For quasi-3-degree laser gain media or maybe 3-amount achieve media, 1 normally should Restrict the length to a worth that's as well small for effective pump absorption, as reabsorption outcomes would or else spoil the effectiveness. For side pumping, further criteria appear into Participate in; In addition to successful pump absorption, it is important to obtain a suitable spatial shape on the achieve profile.
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 progress optical general click here performance uncommon earth ions transition group ions
The medium should have a high transparency (very low absorption and scattering) while in the wavelength regions of pump and laser radiation, and fantastic optical homogeneity. To some extent, this is dependent upon the standard of the material, based on specifics from the fabrication process.
With That idea, just one won't have to have yet another saturable absorber crystal, to make sure that just one may well make far more compact Q-switched laser setups with reduced internal parasitic losses. However, unwanted Unwanted effects can also occur, which include acquiring unwanted valence states from the associated ions or Vitality 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。