The smart Trick of Laser Crystal That No One is Discussing
The smart Trick of Laser Crystal That No One is Discussing
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The most common laser-Lively exceptional earth ions and host media along with some regular emission wavelengths are proven in the following desk:
激光晶体的极化性能可能会影响输出激光束的质量和特性。有些激光晶体产生线性偏振光，这对某些应用可能有益。
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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。
亚稳态寿命也起着重要作用。较长的寿命允许更多的储能和实现粒子数反转的更高潜力，这对激光动作至关重要。
激光晶体的效率在很大程度上依赖于某些属性，这些属性不仅限于其基本组成。这些特性决定了产生的激光光束的质量和随后的应用。
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。
For quasi-three-degree laser achieve media or even 3-degree obtain media, a single frequently ought to Restrict the length to a value and that is as well quick for productive pump absorption, as reabsorption consequences would or else spoil the general performance. For facet pumping, added criteria occur into play; Other than effective pump absorption, it is important to get an appropriate spatial condition of 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 components laser crystal crystal progress optical effectiveness scarce earth ions changeover team ions
The medium Laser Crystal ought to have a large transparency (low absorption and scattering) from the wavelength regions of pump and laser radiation, and very good optical homogeneity. To some extent, this depends upon the quality of the fabric, based on particulars with the fabrication process.
With that concept, a single doesn't require yet another saturable absorber crystal, to make sure that a person may perhaps make additional compact Q-switched laser setups with reduced internal parasitic losses. On the other hand, undesirable Negative effects may also come about, like acquiring unwanted valence states from the associated ions or Vitality transfers.
人造红宝石激光晶体是首次实现激光输出的材料。可用焰熔法、提拉法或助熔剂法生产单晶。用提拉法容易获得大尺寸优质晶体。