A Review Of Laser Crystal
A Review Of Laser Crystal
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These tables incorporate only the commonest host crystals; quite a few Other people exist, which happen to be much less usually made use of.
These ions enable the crystal to amplify light-weight with the laser wavelength by way of stimulated emission, when Strength is provided for the crystal via absorption of pump gentle (�?optical pumping
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 thin disk. As Yet another instance, Q-switched lasers arrive at a better inhabitants density in the upper laser stage and they are consequently a lot more delicate to quenching outcomes and energy transfer processes; as a result, a decrease doping density is frequently suitable for these gadgets. For high-energy lasers, decrease doping densities in many cases are utilized to Restrict the density of heat generation, Even though thin-disk lasers function best with highly doped crystals. Many laser products and solutions never reach the total overall performance potential due to the fact this sort of facts have not been properly labored out.
Several read more laser crystal products are already shown exactly where some saturable absorber substance 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-3-degree laser gain media or maybe three-amount obtain media, 1 generally has to Restrict the length to a price that is far too quick for economical pump absorption, as reabsorption results would usually spoil the efficiency. For aspect pumping, additional issues occur into play; Apart from successful pump absorption, it's important to get an appropriate spatial form on the get profile.
材料 激光晶体 晶体生长 光学性能 稀土离子 过渡族离子 supplies laser crystal crystal progress optical general performance rare earth ions transition group ions
The medium ought to have a substantial transparency (reduced absorption and scattering) in the wavelength areas of pump and laser radiation, and good optical homogeneity. To some extent, this relies on the caliber of the fabric, determined by facts from the fabrication procedure.
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