The Greatest Guide To Laser Crystal

The Greatest Guide To Laser Crystal

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These tables include only the most typical host crystals; lots of Other individuals exist, which happen to be much less regularly utilised.

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为了使激光器有效运作，需要有效管理运行过程中产生的热量。具有良好热导率的激光晶体可以更有效地散热，防止热透镜效应或断裂。

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The host medium influences strongly the wavelength, bandwidth and changeover cross-sections of pump and laser transitions as well as the upper-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 skinny disk. As another instance, Q-switched lasers attain a better inhabitants density inside the upper laser level and they are consequently far more sensitive to quenching effects and Strength transfer procedures; as a result, a decreased doping density is commonly appropriate for these equipment. For high-electric power lasers, decrease doping densities tend to be used to limit the density of heat era, Whilst thin-disk lasers function best with remarkably doped crystals. Lots of laser items never reach the comprehensive general performance prospective due to the fact such information have not been properly worked out.

The host crystal is considerably more than simply a way to click here repair the laser-Energetic ions at particular positions in House. Quite a few Attributes from the host materials are crucial:

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。

For quasi-a few-stage laser obtain media or even three-degree gain media, one typically has to Restrict the duration to a price that's far too shorter for efficient pump absorption, as reabsorption results would or else spoil the effectiveness. For facet pumping, supplemental criteria appear into Engage in; Aside from efficient pump absorption, it is important to get a suitable spatial form with the gain profile.

材料 激光晶体 晶体生长 光学性能 稀土离子 过渡族离子 materials laser crystal crystal expansion optical overall performance exceptional earth ions changeover group ions 

For various motives, composite crystals have become well-liked. These Have got a spatially various chemical composition and can be made with Distinctive styles.

With That idea, 1 doesn't need a further saturable absorber crystal, to ensure that a person may possibly make a lot more compact Q-switched laser setups with lessen inner parasitic losses. However, undesired Negative effects may occur, like acquiring unwanted valence states in the concerned ions or Vitality 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。