The Basic Principles Of Laser Crystal
The Basic Principles Of Laser Crystal
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The commonest laser-Lively uncommon earth ions and host media together with some normal emission wavelengths are demonstrated in the next desk:
These ions help the crystal to amplify light for the laser wavelength by using stimulated emission, when Electrical power is equipped to the crystal via absorption of pump mild (�?optical pumping
Laser crystals are optical crystals �?usually single crystals (monocrystalline optical supplies) �?which might be used as attain media for good-condition lasers. Most often, They are really doped with possibly trivalent unusual 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。
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：
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。
A large surface excellent is needless to say important. Requirements of surface flatness are often a lot better than . This allows to stop each scattering losses and wavefront distortions that may degrade the laser's beam good quality. In addition, scratch and dig requirements
亚稳态寿命也起着重要作用。较长的寿命允许更多的储能和实现粒子数反转的更高潜力，这对激光动作至关重要。
Laser modeling and simulation can be employed to reliably establish the optimum crystal Proportions, doping density And perhaps values of extra parameters.
激光晶体的核心由固态晶体材料组成，通常掺杂了某些能够通过受激发射产生光放大的离子。这些离子的性质对激光晶体的性能起决定作用。
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材料 激光晶体 晶体生长 光学性能 稀土离子 过渡族离子 supplies laser crystal crystal expansion optical overall performance exceptional earth ions transition team ions
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It may be oriented click here for in the vicinity of perpendicular incidence with the laser beam, or at Brewster's angle. It can be fixed in certain reliable mount which also functions like a warmth sink. More substantial crystals are usually useful for side pumping e.g. with higher-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。