The smart Trick of Laser Crystal That No One is Discussing
The smart Trick of Laser Crystal That No One is Discussing
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These tables comprise only the most typical host crystals; a lot of Other folks exist, that are fewer frequently used.
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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 skinny disk. As One more case in point, Q-switched lasers achieve the next population density while in the higher laser level and therefore are thus more sensitive to quenching outcomes and Electrical power transfer procedures; consequently, a reduced doping density is frequently suitable for these equipment. For high-energy lasers, reduced doping densities tend to be used to limit the density of warmth technology, While slim-disk lasers get the job done finest with extremely doped crystals. Numerous laser products do not reach the full performance prospective since this kind of details haven't been appropriately worked out.
The host crystal Laser Crystal is a lot more than simply a way to repair the laser-active ions at particular positions in space. Several Homes in the host materials are essential:
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It is clear that distinctive applications bring about very distinct demands on laser attain media. For this reason, a wide assortment of different crystals are applied, and generating the best decision is essential for developing lasers with ideal general performance.
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。
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There is certainly a wide array of crystalline media, that may be grouped in accordance to big atomic constituents and crystalline buildings. Some important groups of crystals are:
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。