Nonlinear Crystal Options
Nonlinear Crystal Options
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Laser modeling and simulation can be used to reliably determine the the best possible crystal dimensions, doping density And maybe values of added parameters.
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 transition cross-sections of pump and laser transitions as well as the upper-state lifetime.
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The utmost possible doping concentration can count strongly within the host product and its fabrication strategy.
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In addition, some overall flexibility is misplaced in experiments if one are unable to try out absorbers with different thickness or doping focus, for instance, without the need of exchanging the laser crystal by itself.
These ions permit the crystal to amplify mild with the laser wavelength by using stimulated emission, when Strength is supplied on the crystal by means of absorption of pump light (�?optical pumping
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These tables incorporate only the commonest host crystals; a lot of Some others exist, click here which might be significantly less regularly employed.
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Individuals surfaces which can be passed by the laser beam are Ordinarily possibly oriented at Brewster's angle or have an anti-reflection coating.
For numerous factors, composite crystals have become well known. These Have got a spatially varying chemical composition and may be made with Specific shapes.
You can find a wide range of crystalline media, that may be grouped in accordance to important atomic constituents and crystalline buildings. Some significant teams of crystals are:
With that concept, one particular doesn't need to have a further saturable absorber crystal, to make sure that one particular may well make much more compact Q-switched laser setups with lower interior parasitic losses. Nonetheless, unwanted Unwanted side effects could also arise, for instance getting unwelcome valence states from the associated ions or energy transfers.
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It is obvious that various purposes cause pretty distinct requirements on laser attain media. This is why, a broad variety of various crystals are utilized, and producing the appropriate option is essential for constructing 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。