5 Easy Facts About Laser Crystal Described
5 Easy Facts About Laser Crystal Described
Blog Article
These tables include only the commonest host crystals; numerous Other folks exist, that are a lot less commonly used.
These ions empower the crystal to amplify gentle for the laser wavelength by way of stimulated emission, when Strength is supplied to the crystal by using absorption of pump light (�?optical pumping
Laser crystals are optical crystals �?generally one crystals (monocrystalline optical supplies) �?which happen to be utilized as gain media for sound-condition lasers. Typically, They can be doped with both trivalent exceptional earth ions or changeover steel ions.
On top of that, some flexibility is shed in experiments if a person simply cannot Check out absorbers with unique thickness or doping focus, one example is, without the need of exchanging the laser crystal by itself.
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。
Naturally, it is rather appealing that a offered crystal high quality is produced consistently, Whilst unique laser layouts may have a special sensitivity to product parameters.
The maximum doable doping focus can depend strongly to the host materials and its fabrication system.
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。
All those surfaces that are passed by the laser beam are Commonly 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。
The medium should have a superior transparency (reduced absorption and scattering) in the wavelength areas of pump and laser radiation, and very good optical homogeneity. To some extent, this is determined by the standard of the material, based on specifics of the fabrication approach.
With That idea, just one won't will need a further saturable absorber crystal, making sure that one more info particular might make more compact Q-switched laser setups with lessen inside parasitic losses. Nonetheless, unwanted Negative effects may also come about, including getting undesired valence states with the involved 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。