About Laser Crystal
About Laser Crystal
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These tables have only the commonest host crystals; numerous Other folks exist, which can be a lot less routinely utilized.
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。
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。
Moreover, some adaptability is shed in experiments if one are not able to try out absorbers with unique thickness or doping concentration, for example, devoid of exchanging the laser crystal by itself.
The host medium influences strongly the wavelength, bandwidth and transition cross-sections of pump and laser transitions and in addition the higher-point out 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。
激光晶体的损伤阈值与其能承受的最大光强有关，而不会遭受物理或结构损伤。高损伤阈值对于确保高功率激光应用的耐久性和长寿命至关重要。
g. a thin disk. As Yet another instance, Q-switched lasers achieve a greater populace density during the upper laser degree and so are hence extra sensitive to quenching consequences and energy transfer procedures; hence, a decreased doping density is frequently suitable for these equipment. For high-electric power lasers, decrease doping densities will often be utilized to Restrict the density of warmth technology, Whilst skinny-disk lasers work most effective with really doped crystals. Quite a few laser items never reach the whole efficiency probable simply because these types of information have not been adequately worked out.
A number of laser crystal elements are already shown where by some saturable absorber product is integrated 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。
It is apparent that diverse apps bring check here about extremely different prerequisites on laser get media. This is why, a broad range of various crystals are utilised, and creating the right preference is essential for constructing lasers with ideal efficiency.
Distinctive crystalline resources are very unique regarding their hardness and other Houses, which figure out with which solutions And the way very easily they may be Lower and polished with top quality.
The medium should have a higher transparency (minimal absorption and scattering) while in the wavelength areas of pump and laser radiation, and fantastic optical homogeneity. To some extent, this relies on the standard of the fabric, based on facts with the fabrication system.
There is a wide range of crystalline media, which may be grouped in accordance to special atomic constituents and crystalline buildings. Some vital 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。