Little Known Facts About Laser Crystal.
Little Known Facts About Laser Crystal.
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These tables consist of only the most common host crystals; several Some others exist, which can be considerably less routinely used.
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激光晶体是固态激光器的核心。它们是光放大发生的媒介，产生激光束。在这篇全面指南中，我们深入探讨激光晶体的世界。
激光晶体中活性离子的作用是什么？ 活性离子在激光晶体中负责通过受激发射产生激光光线。
The host medium influences strongly the wavelength, bandwidth and transition cross-sections of pump and laser transitions and likewise the higher-state lifetime.
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 higher area top quality is of course significant. Specs of area flatness are sometimes much better than . This will help to avoid both equally scattering losses and wavefront distortions which may degrade the laser's beam excellent. Additionally, scratch and dig requirements
g. a skinny disk. As A different case in point, Q-switched lasers access a better populace density in the upper laser stage and so are as a result much more sensitive to quenching outcomes and Strength transfer procedures; therefore, a lessen doping density is often suitable for these equipment. For prime-electrical power lasers, lower doping densities are sometimes used to limit the density of warmth technology, Even though slender-disk lasers get the job done very best with hugely doped crystals. Several laser goods usually do not get to the complete overall performance opportunity since such aspects have not been adequately worked out.
Laser modeling and simulation can be used to reliably ascertain the optimum crystal dimensions, doping density And maybe values of more 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。
It is obvious that distinctive purposes bring about really unique demands on laser attain media. This is why, a broad assortment of different crystals are made use of, and producing the correct more info preference is important for setting up lasers with optimum general performance.
Unique crystalline components are very unique concerning their hardness and various Homes, which determine with which approaches and how quickly they can be Minimize and polished with top quality.
The medium should have a higher transparency (reduced absorption and scattering) inside the wavelength areas of pump and laser radiation, and excellent optical homogeneity. To some extent, this is dependent upon the caliber of the material, determined by particulars from the fabrication procedure.
It could be oriented for close to perpendicular incidence in the laser beam, or at Brewster's angle. It could be preset in some strong mount which also acts being a warmth sink. Larger sized crystals are often utilized for aspect pumping e.g. with substantial-electric power diode bars.
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