A Simple Key For Laser Crystal Unveiled
A Simple Key For Laser Crystal Unveiled
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Distinctive crystalline resources are quite different relating to their hardness along with other Attributes, which decide with which solutions And the way quickly they can be Minimize and polished with top 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.
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For quasi-3-degree laser gain media or even a few-degree acquire media, one normally ought to limit the duration to a price that's also short for economical pump absorption, as reabsorption results would or else spoil the performance. For aspect pumping, extra criteria appear into play; Moreover effective pump absorption, it is important to get an acceptable spatial form of your obtain profile.
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A superior injury threshold in terms of pulse fluence or peak intensity can be critical for high-Strength amplifiers.
作为工业上使用较多的都是高掺钇铝石榴石，也就是说掺入不同的元素来达到不同的效果；作为工业激光，关注以下性能：
Which geometry, dopant and doping focus from the achieve medium are most useful rely on many things. The accessible pump supply (variety of laser diode or lamp) plus the envisaged pumping arrangement are important variables, but the material alone also has some affect. Such as, titanium–sapphire lasers need to be pumped with large intensities, for which the shape of the transversely cooled rod, operated with rather compact pump and laser beam diameter, is more correct than e.
It could be oriented for in the vicinity of perpendicular incidence on the laser beam, or at Brewster's angle. It can be preset in a few solid mount which also functions as being a warmth sink. Bigger crystals are often employed for side pumping e.g. with substantial-power diode bars.
The commonest laser-Energetic scarce earth ions and host media together with some regular emission wavelengths are shown in the next desk:
All those surfaces which happen to be passed by the laser beam are Usually both oriented at more info Brewster's angle or have an anti-reflection coating.
Certainly, it is extremely fascinating that a given crystal quality is made consistently, Whilst distinctive laser designs may have a distinct sensitivity to content 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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Laser crystals are optical crystals �?commonly single crystals (monocrystalline optical elements) �?that happen to be utilized as achieve media for good-state lasers. Typically, They're doped with both trivalent rare earth ions or changeover 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。