Details, Fiction and Laser Crystal
Details, Fiction and Laser Crystal
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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（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。
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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。
活性离子在激光晶体内发生的能量跃迁对激光操作至关重要。大多数激光操作都是通过四能级系统原理进行的，确保连续操作并防止浪费的非辐射衰变。
g. a skinny disk. As Yet another case in point, Q-switched lasers attain an increased inhabitants density within the higher laser level and therefore are thus more delicate to quenching effects and Vitality transfer processes; thus, a lessen doping density is often appropriate for these devices. For high-energy lasers, reduced doping densities are sometimes accustomed to limit the density of heat generation, although slender-disk lasers work finest with highly doped crystals. Lots of laser products and solutions will not reach the complete overall performance potential for the reason that these specifics haven't been appropriately worked out.
Laser modeling and simulation can be employed to reliably establish the the best possible crystal dimensions, doping density And maybe values of supplemental parameters.
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。
Those surfaces which might be handed from the laser beam are Generally both oriented at Brewster's angle more info or have an anti-reflection coating.
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The medium ought to have a high transparency (low absorption and scattering) while in the wavelength areas of pump and laser radiation, and fantastic optical homogeneity. To some extent, this will depend on the quality of the material, based on specifics of your fabrication system.
With that concept, 1 does not need an additional saturable absorber crystal, so that one may perhaps make additional compact Q-switched laser setups with decrease inner parasitic losses. Nonetheless, unwanted Unwanted side effects could also manifest, which include acquiring unwelcome valence states in the associated ions or Strength transfers.
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。