5 Simple Techniques For Laser Crystal
5 Simple Techniques For Laser Crystal
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These tables incorporate only the commonest host crystals; many Other people exist, which are fewer frequently utilized.
These ions enable the crystal to amplify light within the laser wavelength via stimulated emission, when Electrical power is equipped towards the crystal by using absorption of pump light-weight (�?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。
The host medium influences strongly the wavelength, bandwidth and changeover cross-sections of pump and laser transitions in addition to the upper-state life span.
晶体的光学质量对激光器的有效运行至关重要。晶体中的缺陷或杂质可能导致光散射、吸收甚至损坏晶体。高光学质量确保了稳定和高质量的激光束。
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 An additional illustration, Q-switched lasers reach a better inhabitants density within the upper laser stage and are for that reason extra sensitive to quenching effects and Strength transfer procedures; therefore, a reduce doping density is frequently suitable for these equipment. For high-electricity lasers, decreased doping densities will often be utilized to Restrict the density of warmth technology, Though slender-disk lasers function very best with extremely doped crystals. Numerous laser goods will not reach the complete overall performance possible because these types of aspects have not been correctly labored out.
The host crystal is much more than just a way to repair the laser-Lively ions at specific positions in Place. Many Attributes of the host material are website crucial:
热膨胀和收缩系数对确定激光晶体的热透镜特性至关重要。最小化热透镜效应对于在广泛的操作温度范围内保持光束质量至关重要。
All those surfaces that happen to be passed via the laser beam are Commonly either oriented at Brewster's angle or have an anti-reflection coating.
材料 激光晶体 晶体生长 光学性能 稀土离子 过渡族离子 components laser crystal crystal expansion optical performance scarce earth ions transition team ions
The medium ought to have a large transparency (very low absorption and scattering) while in the wavelength locations of pump and laser radiation, and good optical homogeneity. To some extent, this depends upon the caliber of the fabric, determined by aspects of the fabrication process.
With That idea, one particular will not want an additional saturable absorber crystal, to ensure that one may perhaps make additional compact Q-switched laser setups with decrease internal parasitic losses. However, undesired Uncomfortable side effects can also occur, for instance obtaining undesired valence states of the included ions or energy transfers.
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