Laser Crystal No Further a Mystery

Laser Crystal No Further a Mystery

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The most common laser-Energetic exceptional earth ions and host media together with some typical emission wavelengths are shown in the subsequent 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 �?normally solitary crystals (monocrystalline optical materials) �?that happen to be applied as gain media for strong-condition lasers. Usually, These are doped with either trivalent exceptional earth ions or changeover steel ions.

Furthermore, some overall flexibility is dropped in experiments if one particular are unable to try out absorbers with distinct thickness or doping concentration, for instance, with out exchanging the laser crystal alone.

Which geometry, dopant and doping concentration in the attain medium are most useful rely on a number of elements. The accessible pump resource (form of laser diode or lamp) and also the envisaged pumping arrangement are crucial variables, but the fabric itself also has some impact. As an example, titanium–sapphire lasers ought to be pumped with large intensities, for which the form of the transversely cooled rod, operated with fairly compact pump and laser beam diameter, is more acceptable than e.

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。

Naturally, it is rather appealing that a offered crystal top quality is developed persistently, Despite the fact that distinct laser styles may have a special sensitivity to material 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。

Laser modeling and simulation may be used to reliably identify the ideal crystal Proportions, doping density And perhaps values of extra parameters.

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 maybe three-amount obtain media, one generally has to Restrict the length to a value which happens to be far too short for effective pump absorption, as reabsorption effects would or else spoil the efficiency. For facet pumping, more criteria arrive into Engage in; Other than productive pump absorption, it is important to obtain an appropriate spatial form on the gain profile.

Different crystalline resources are quite various regarding their hardness and other here Qualities, which ascertain with which methods and how simply they are often Slice and polished with top quality.

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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。