5 Simple Techniques For Laser Crystal
5 Simple Techniques For Laser Crystal
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The most typical laser-active uncommon earth ions and host media along with some regular emission wavelengths are revealed in the next table:
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为了使激光器有效运作，需要有效管理运行过程中产生的热量。具有良好热导率的激光晶体可以更有效地散热，防止热透镜效应或断裂。
激光晶体（laser crystal），可将外界提供的能量通过光学谐振腔转化为在空间和时间上相干的具有高度平行性和单色性激光的晶体材料。是晶体激光器的工作物质。
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激光晶体由发光中心和基质晶体两部分组成。大部分激光晶体的发光中心由激活离子构成，激活离子部分取代基质晶体中的阳离子形成掺杂型激光晶体。激活离子成为基质晶体组分的一部分时，则构成自激活激光晶体。
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 One more case in point, Q-switched lasers attain a better populace density during the higher laser level and so are consequently far more delicate to quenching effects and Electricity transfer procedures; thus, a lessen doping density is commonly suitable for these products. For prime-electricity lasers, decrease doping densities are sometimes accustomed to limit the density of warmth era, Though thin-disk lasers work most effective with extremely doped crystals. Lots of laser products and solutions will not reach the full general performance likely since such facts have not been appropriately labored out.
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。
量子效率是发射光子数量与吸收光子数量的比率。高量子效率表明更大部分吸收能量被转化为激光光束，有助于提高激光的整体效率。
It is apparent that various applications result in extremely various requirements on laser gain media. For this reason, a wide selection of different crystals are used, and earning the appropriate decision is essential for developing lasers with ideal effectiveness.
主体材料中活性离子掺杂物的数量是关键因素。它影响了激光的效率和性能。过低的浓度可能导致低输出，过高的浓度可能导致消光效应，降低晶体的效率。
For many good reasons, composite crystals have gotten common. These Possess a spatially varying chemical composition and will be manufactured with Particular shapes.
With that concept, just one does not have to have an extra saturable absorber crystal, to ensure that a single may make additional compact click here Q-switched laser setups with decrease interior parasitic losses. On the other hand, undesirable side effects may also happen, including obtaining unwanted valence states of your concerned ions or energy transfers.
激光晶体（laser crystal），可将外界提供的能量通过光学谐振腔转化为在空间和时间上相干的具有高度平行性和单色性激光的晶体材料。是晶体激光器的工作物质。