An Unbiased View of Laser Crystal
An Unbiased View of Laser Crystal
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Diverse crystalline materials are certainly unique concerning their hardness and also other Homes, which establish with which strategies And just how quickly they can 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 just a method to fix the laser-active ions at selected positions in Place. Quite a few properties from the host material are very 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 maximum probable doping focus can rely strongly to the host material and its fabrication method.
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A significant problems threshold regarding pulse fluence or peak intensity could be vital for high-Electricity amplifiers.
These ions permit the crystal to amplify light within the laser wavelength through stimulated emission, when Vitality is equipped into the crystal through absorption of pump light-weight (�?optical pumping
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These tables include only the most common host crystals; several Some others exist, that happen to be much less frequently used.
The most common laser-Lively exceptional earth ions and host media along with some common emission wavelengths are proven in the following desk:
A number of laser crystal resources have been shown where some saturable absorber materials is incorporated for passive Q switching of the here laser.
For different factors, composite crystals are becoming well-known. These have a spatially different chemical composition and will be manufactured with Exclusive designs.
There may be an array of crystalline media, which can be grouped according to special atomic constituents and crystalline buildings. Some crucial teams of crystals are:
With That idea, one doesn't want a further saturable absorber crystal, to make sure that a single may well make extra compact Q-switched laser setups with lower internal parasitic losses. Even so, unwelcome Unwanted side effects can also take place, for example acquiring undesirable valence states from the involved ions or Electrical power transfers.
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It is obvious that various purposes bring on really various requirements on laser attain media. This is why, a broad vary of different crystals are used, and earning the ideal decision is important for setting up lasers with the best possible overall performance.
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。