A Review Of Laser Crystal
A Review Of Laser Crystal
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蓝宝�?柱面�?球罩 偏振�?棱镜 红外光学元件 反射�?光学窗口 非球面镜 波片 分光镜
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。
Laser crystals are optical crystals �?commonly single crystals (monocrystalline optical products) �?that happen to be used as attain media for reliable-point out lasers. Normally, They are really doped with either trivalent unusual earth ions or changeover metallic ions.
激光晶体中活性离子的作用是什么？ 活性离子在激光晶体中负责通过受激发射产生激光光线。
作为工业上使用较多的都是高掺钇铝石榴石，也就是说掺入不同的元素来达到不同的效果；作为工业激光，关注以下性能：
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。
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。
Several laser crystal supplies are shown in which some saturable absorber product is incorporated for passive Q switching of a laser.
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It is apparent that various applications result in really distinct demands on laser achieve media. For that reason, a broad array of different crystals are made use of, and creating the ideal alternative is essential for constructing lasers with the best possible general performance.
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 advancement optical general performance scarce earth ions transition team ions
The medium must have a high transparency (low absorption and scattering) from the wavelength areas of pump and laser radiation, and superior optical homogeneity. To some extent, this more info will depend on the quality of the material, based on details in the fabrication system.
With That idea, a person won't need to have an extra saturable absorber crystal, to ensure that one could make much more compact Q-switched laser setups with lessen inside parasitic losses. Nonetheless, unwanted Unwanted side effects could also come about, including getting undesired valence states of the included ions or Electricity 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。