5 Simple Techniques For Laser Crystal
5 Simple Techniques For Laser Crystal
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Different crystalline components are extremely distinctive concerning their hardness as well as other Attributes, which determine with which techniques And the way quickly they may be cut and polished with good 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 crystal is considerably more than simply a method to fix the laser-Lively ions at selected positions in Room. Quite a few Houses in the host materials are important:
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。
The utmost achievable doping concentration can count strongly to the host materials and its fabrication approach.
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On top of that, some versatility is dropped in experiments if just one cannot Check out absorbers with different thickness or doping concentration, for example, with out exchanging the laser crystal itself.
These ions enable the crystal to amplify light-weight for the laser wavelength through stimulated emission, when Vitality is equipped to your crystal by means of absorption of pump mild (�?optical pumping
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These tables contain only the most common host crystals; many Other people exist, that are significantly less often used.
The commonest laser-Energetic uncommon earth ions and host media together with some standard emission wavelengths are shown in the subsequent desk:
These surfaces which might be handed by the laser beam are Usually either oriented at Brewster's angle or have an anti-reflection coating.
Naturally, it's very attractive that a supplied crystal high-quality is developed continuously, While unique laser types can have another sensitivity to substance parameters.
There's a wide array of crystalline media, which can be grouped according to important atomic constituents and crystalline constructions. Some crucial teams of crystals are:
With that concept, 1 won't will need an additional saturable absorber crystal, making sure that 1 may perhaps make much more compact Q-switched laser setups with decreased internal parasitic losses. Having said that, unwanted Negative effects might also happen, including acquiring undesired valence states with the involved ions or Electrical read more power transfers.
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Laser crystals are optical crystals �?usually solitary crystals (monocrystalline optical supplies) �?that are used as gain media for stable-state lasers. Typically, They may be doped with either trivalent rare earth ions or transition steel 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。