The Laser Crystal Diaries

The Laser Crystal Diaries

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The most common laser-Lively unusual earth ions and host media together with some normal emission wavelengths are proven in the subsequent desk:

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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。

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The host medium influences strongly the wavelength, bandwidth and changeover cross-sections of pump and laser transitions and in addition the higher-state lifetime.

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 thin disk. As A different example, Q-switched lasers get to the next population density while in the higher laser stage and they are consequently far more delicate to quenching consequences and Power transfer processes; thus, a lower doping density is often appropriate for these gadgets. For prime-electricity lasers, decreased doping densities will often be utilized to Restrict the density click here of warmth era, Despite the fact that slim-disk lasers operate ideal with hugely doped crystals. A lot of laser merchandise don't get to the complete general performance possible for the reason that such information haven't been properly labored out.

The host crystal is a lot more than simply a method to repair the laser-active ions at specific positions in Place. A number of Homes with the host product are very important:

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。

Individuals surfaces which might be passed by the laser beam are Ordinarily both oriented at Brewster's angle or have an anti-reflection coating.

主体材料中活性离子掺杂物的数量是关键因素。它影响了激光的效率和性能。过低的浓度可能导致低输出，过高的浓度可能导致消光效应，降低晶体的效率。

For several good reasons, composite crystals have gotten well-known. These Possess a spatially different chemical composition and can be built with Exclusive designs.

There's an array of crystalline media, which may be grouped in accordance to big atomic constituents and crystalline buildings. Some important 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。