About Laser Crystal
About Laser Crystal
Blog Article
These tables have only the most typical host crystals; a lot of others exist, which are a lot less commonly employed.
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Laser crystals are optical crystals �?usually one crystals (monocrystalline optical supplies) �?that are employed as get media for solid-point out lasers. Most often, they are doped with possibly trivalent scarce earth ions or changeover metallic ions.
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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：
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Of course, it's very fascinating that a supplied crystal top quality is created consistently, Even though diverse laser models may have a unique sensitivity to substance parameters.
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。
激光晶体的效率在很大程度上依赖于某些属性，这些属性不仅限于其基本组成。这些特性决定了产生的激光光束的质量和随后的应用。
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。
For quasi-a few-degree laser get media and even a few-stage attain media, a person generally website should limit the duration to a worth that is too shorter for effective pump absorption, as reabsorption effects would in any other case spoil the efficiency. For side pumping, more considerations occur into Engage in; Moreover productive pump absorption, it's important to obtain an acceptable spatial shape of your acquire profile.
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The medium must have a higher transparency (lower absorption and scattering) in the wavelength regions of pump and laser radiation, and good optical homogeneity. To some extent, this is dependent upon the quality of the material, based on particulars with the fabrication process.
It might be oriented for in close proximity to perpendicular incidence in the laser beam, or at Brewster's angle. It might be set in certain strong mount which also acts as being a heat sink. Larger sized crystals are often utilized for facet pumping e.g. with high-electrical power 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。