Various crystalline resources are extremely different about their hardness as well as other Attributes, which figure out with which strategies And exactly how conveniently they can be Minimize and polished with top quality.
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。
The host crystal is far more than just a means to fix the laser-Energetic ions at specified positions in space. Quite a few Qualities in the host content are very important:
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。
The most achievable doping focus can depend strongly to the host materials and its fabrication system.
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A significant harm threshold concerning pulse fluence or peak intensity is often crucial for top-Power amplifiers.
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:
Which geometry, dopant and doping focus of your acquire medium are most beneficial count on a number of variables. The available pump source (form of laser diode or lamp) as well as envisaged pumping arrangement are important variables, but the fabric alone also has some impact. For instance, titanium–sapphire lasers must be pumped with significant intensities, for which the shape of the transversely cooled rod, operated with relatively small pump and laser beam diameter, is more proper than e.
It might be oriented for in close proximity to perpendicular incidence of your laser beam, or at Brewster's angle. It might be preset in certain solid mount which also functions to be a warmth sink. Larger crystals are often used for side pumping e.g. with high-power diode bars.
The commonest laser-Energetic uncommon earth ions and host media together with some usual emission wavelengths are demonstrated in the next table:
Those surfaces which might be passed because of the here laser beam are Usually possibly oriented at Brewster's angle or have an anti-reflection coating.
Naturally, it is vitally desirable that a provided crystal excellent is produced constantly, While distinctive laser designs can have a distinct sensitivity to content parameters.
You can find a wide range of crystalline media, which can be grouped according to important atomic constituents and crystalline structures. Some essential groups of crystals are:
蓝宝�?柱面�?球罩 偏振�?棱镜 红外光学元件 反射�?光学窗口 非球面镜 波片 分光�?制造能力
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Laser crystals are optical crystals �?usually solitary crystals (monocrystalline optical materials) �?which can be made use of as acquire media for reliable-point out lasers. Normally, These are doped with possibly trivalent uncommon earth ions or transition steel ions.
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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