Not known Facts About Laser Crystal

Not known Facts About Laser Crystal

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The commonest laser-Energetic uncommon earth ions and host media together with some common emission wavelengths are revealed in the next desk:

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为了使激光器有效运作，需要有效管理运行过程中产生的热量。具有良好热导率的激光晶体可以更有效地散热，防止热透镜效应或断裂。

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The host medium influences strongly the wavelength, bandwidth and transition cross-sections of pump and laser transitions and likewise the upper-state lifetime.

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A superior surface area excellent is not surprisingly significant. Requirements of floor flatness tend to be much better than . This allows to stay away from the two scattering losses and wavefront distortions that may degrade the laser's beam excellent. On top of that, scratch and dig requirements

g. a thin disk. As another case in point, Q-switched lasers access an increased populace density in the higher laser amount and they are hence more sensitive to quenching results and Vitality transfer processes; therefore, a decrease doping density is usually appropriate for these units. For high-ability lasers, reduced doping densities are frequently used to limit the density of warmth era, Despite the fact that skinny-disk lasers perform finest with highly doped crystals. Quite a few laser solutions do not reach the comprehensive effectiveness potential simply because these details haven't been effectively labored out.

Several laser crystal supplies have already been demonstrated where some saturable absorber product is included for passive Q switching of a laser.

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。

For quasi-three-amount laser get media or maybe 3-degree get media, one frequently get more info needs to Restrict the duration to a worth which can be far too shorter for economical pump absorption, as reabsorption consequences would in any other case spoil the effectiveness. For side pumping, extra considerations arrive into Enjoy; Aside from efficient pump absorption, it is vital to acquire an appropriate spatial form of your acquire profile.

Unique crystalline materials are extremely diverse relating to their hardness along with other Qualities, which figure out with which techniques And exactly how quickly they can be cut and polished with good quality.

The medium must have a substantial transparency (low absorption and scattering) while in the wavelength areas of pump and laser radiation, and excellent optical homogeneity. To some extent, this depends on the quality of the material, determined by information with the fabrication course of action.

There may be a wide range of crystalline media, that may be grouped according to special atomic constituents and crystalline structures. Some critical 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。