Laser Crystal - An Overview
Laser Crystal - An Overview
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These tables include only the most common host crystals; lots of Some others exist, which are a lot less regularly utilized.
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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。
The host medium influences strongly the wavelength, bandwidth and changeover cross-sections of pump and laser transitions as well as the higher-condition lifetime.
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。
Obviously, it is extremely appealing that a specified crystal high-quality is manufactured continuously, While unique laser models might have a different sensitivity to substance parameters.
The utmost probable doping concentration can depend strongly to the host material and its fabrication approach.
The host crystal is considerably more than simply a method to repair the laser-Energetic ions at certain positions in Place. A number of properties on the host product are very important:
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。
For quasi-three-stage laser obtain media and even three-degree obtain media, one often has to Restrict the length to a value which happens to be much too brief for economical read more pump absorption, as reabsorption consequences would if not spoil the performance. For facet pumping, extra criteria come into play; besides efficient pump absorption, it is important to acquire a suitable spatial form with the attain profile.
材料 激光晶体 晶体生长 光学性能 稀土离子 过渡族离子 products laser crystal crystal growth optical effectiveness unusual earth ions transition group ions
For different reasons, composite crystals have gotten well known. These have a spatially various chemical composition and will be built with Particular designs.
It may be oriented for close to perpendicular incidence of the laser beam, or at Brewster's angle. It can be fixed in certain sound mount which also acts for a warmth sink. Greater crystals are often utilized for aspect pumping e.g. with superior-electrical power diode bars.
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。