Laser Crystal for Dummies
Laser Crystal for Dummies
Blog Article
The most typical laser-Energetic exceptional earth ions and host media along with some normal emission wavelengths are proven in the following table:
激光晶体的极化性能可能会影响输出激光束的质量和特性。有些激光晶体产生线性偏振光，这对某些应用可能有益。
Laser crystals are optical crystals �?ordinarily solitary crystals (monocrystalline optical products) �?which might be utilized as get media for strong-condition lasers. In most cases, They can be doped with possibly trivalent rare earth ions or transition steel ions.
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The host medium influences strongly the wavelength, bandwidth and changeover cross-sections of pump and laser transitions as well as the upper-condition lifetime.
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Not surprisingly, it is rather desirable that a specified crystal good quality is created consistently, While distinctive laser types can have a different sensitivity to content parameters.
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。
Some laser read more crystal supplies are shown where some saturable absorber material is incorporated for passive Q switching of a laser.
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-3-amount laser get media or perhaps a few-level achieve media, one generally needs to limit the length to a price which happens to be also shorter for effective pump absorption, as reabsorption results would usually spoil the performance. For side pumping, further things to consider occur into play; Moreover effective pump absorption, it is necessary to get an appropriate spatial form on the achieve profile.
Distinctive crystalline components are really distinct concerning their hardness and also other properties, which decide with which procedures And exactly how conveniently they may be Reduce and polished with good quality.
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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。