5 Simple Techniques For Laser Crystal
5 Simple Techniques For Laser Crystal
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Laser modeling and simulation can be used to reliably decide the optimum crystal dimensions, doping density and possibly values of more 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 life time.
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The most feasible doping focus can rely strongly on the host material and its fabrication method.
g. a skinny disk. As One more case in point, Q-switched lasers get to a greater inhabitants density in the higher laser stage and are as a result additional sensitive to quenching effects and Vitality transfer processes; hence, a lower doping density is often appropriate for these equipment. For high-ability lasers, reduce doping densities in many cases are utilized to limit the density of heat generation, Despite the fact that thin-disk lasers get the job done finest with extremely doped crystals. Several laser merchandise will not reach the entire effectiveness potential since this sort of information haven't been properly worked out.
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Furthermore, some adaptability is dropped in experiments if one cannot Check out absorbers with different thickness or doping concentration, by way of example, without the need of exchanging the laser crystal itself.
These ions empower the crystal to amplify light at the laser wavelength by means of stimulated emission, when Power is equipped to your crystal via absorption of pump mild (�?optical pumping
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It may be oriented for close to perpendicular incidence on the laser beam, or at Brewster's angle. It could be set in a few reliable mount which also functions being a warmth sink. Much larger crystals tend to be used for side pumping e.g. with significant-energy diode bars.
The most typical laser-Energetic scarce earth ions and host media together with some standard emission wavelengths are shown in the following table:
Individuals surfaces which are passed via the laser beam are Ordinarily possibly oriented at Brewster's angle or have an anti-reflection coating.
Not surprisingly, it is very desirable that a presented crystal high quality is manufactured persistently, here Despite the fact that various laser designs might have a distinct 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。
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It is apparent that unique programs bring on incredibly distinctive demands on laser obtain media. Due to this, a wide vary of various crystals are applied, and building the correct preference is important for constructing lasers with optimum efficiency.
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。