Laser Crystal - An Overview
Laser Crystal - An Overview
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Different crystalline elements are incredibly distinctive regarding their hardness as well as other Houses, which figure out with which procedures and how very easily they may be cut and polished with high quality.
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。
The host medium influences strongly the wavelength, bandwidth and changeover cross-sections of pump and laser transitions in addition to the higher-point out life span.
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。
For quasi-a few-degree laser obtain media or perhaps a few-stage obtain media, 1 often really should Restrict the length to a worth and that is also brief for economical pump absorption, as reabsorption outcomes would or else spoil the performance. For facet pumping, further considerations appear into Perform; Other than productive pump absorption, it's important to acquire a suitable spatial form from the get profile.
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Furthermore, some flexibility is missing in experiments if one are unable to try out absorbers with various thickness or doping concentration, as an example, with out exchanging the laser crystal alone.
These ions empower the crystal to amplify mild at the laser wavelength via stimulated emission, when Strength is supplied on the crystal by way of absorption of pump light-weight (�?optical pumping
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These tables contain only the commonest host crystals; a lot of Many others exist, which might be considerably less usually utilised.
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Individuals surfaces which happen to be passed from the laser beam are Usually possibly oriented at Brewster's angle or have an anti-reflection coating.
Naturally, it is very fascinating that a presented crystal good quality is produced continually, Despite the fact that diverse laser styles might have a unique sensitivity to material parameters.
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。
With That idea, 1 does not have to have an extra saturable absorber crystal, so that one particular could make much more compact Q-switched laser setups with decreased inside parasitic losses. Having said that, undesired Unwanted effects might also come about, like acquiring undesired valence states of your associated ions or Electrical power transfers.
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Laser crystals are optical crystals �?ordinarily solitary crystals (monocrystalline optical supplies) �?that are utilized as obtain media for strong-condition lasers. Normally, They're doped with both trivalent uncommon earth ions or changeover metal ions.
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。