Laser Crystal for Dummies

Laser Crystal for Dummies

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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 �?usually solitary crystals (monocrystalline optical supplies) �?which are utilised as obtain media for good-point out lasers. Generally, they are doped with possibly trivalent uncommon earth ions or changeover metallic ions.

Furthermore, some adaptability is misplaced in experiments if one particular can't Check out absorbers with distinctive thickness or doping concentration, such as, devoid of exchanging the laser crystal itself.

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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。

Needless to say, it is vitally appealing that a specified crystal good quality is created continually, Though distinctive laser styles may have a special sensitivity to substance 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。

A couple of laser crystal supplies are actually demonstrated where by some saturable absorber content is incorporated for passive read more Q switching of the 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。

It is obvious that distinctive applications bring about pretty various demands on laser attain media. Because of this, a broad assortment of different crystals are employed, and producing the best alternative is important for setting up lasers with ideal effectiveness.

Distinct crystalline supplies are very unique regarding their hardness and other Homes, which figure out with which methods And exactly how quickly they can be Slash and polished with high quality.

The medium must have a large transparency (minimal absorption and scattering) inside the wavelength regions of pump and laser radiation, and fantastic optical homogeneity. To some extent, this relies on the caliber of the material, based on specifics from the fabrication system.

There is a wide range of crystalline media, that may be grouped in accordance to important atomic constituents and crystalline buildings. Some crucial groups of crystals are:

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。