New Step by Step Map For Laser Crystal
New Step by Step Map For Laser Crystal
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These tables incorporate only the commonest host crystals; quite a few Some others exist, which can be a lot less regularly utilized.
These ions empower the crystal to amplify gentle at the laser wavelength by means of stimulated emission, when Electrical power is equipped to your crystal by using absorption of pump gentle (�?optical pumping
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Moreover, some versatility is shed in experiments if just one can't Check out absorbers with diverse thickness or doping focus, one example is, without having exchanging the laser crystal alone.
The host medium influences strongly the wavelength, bandwidth and transition cross-sections of pump and laser transitions and likewise the upper-condition life time.
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。
激光晶体的损伤阈值与其能承受的最大光强有关，而不会遭受物理或结构损伤。高损伤阈值对于确保高功率激光应用的耐久性和长寿命至关重要。
探索激光晶体的领域，可以让我们看到科学和技术相结合的奇迹，为我们带来了令人难以置信的进步。这些激光晶体，每一种都在组成和特性上独具匠心，是推动现代世界众多应用的动力。
A number of laser crystal components are already shown the place some saturable absorber substance is incorporated for passive Q switching of the laser.
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-three-stage laser achieve media or maybe a few-level achieve media, a person frequently ought to limit the duration to a price which happens to be far too short for productive pump absorption, as reabsorption outcomes would in any other case spoil the general performance. For side pumping, added criteria come into play; Apart from effective pump absorption, it's important to get a suitable spatial condition with the here obtain profile.
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。
The medium must have a higher transparency (minimal absorption and scattering) from the wavelength regions of pump and laser radiation, and good optical homogeneity. To some extent, this will depend on the quality of the fabric, determined by details of your fabrication course of action.
It could be oriented for around perpendicular incidence in the laser beam, or at Brewster's angle. It may be preset in certain stable mount which also functions for a warmth sink. Bigger crystals are generally useful for side pumping e.g. with substantial-electric 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。