A Simple Key For Laser Crystal Unveiled
A Simple Key For Laser Crystal Unveiled
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Laser modeling and simulation may be used to reliably establish the optimum crystal Proportions, doping density And maybe values of extra 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 changeover cross-sections of pump and laser transitions and likewise the higher-state lifetime.
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 most feasible doping concentration can count strongly around the host content and its fabrication technique.
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A significant destruction threshold concerning pulse fluence or peak intensity might be significant for prime-Vitality 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 concentration with the acquire medium are most beneficial depend upon many aspects. The accessible pump resource (form of laser diode or lamp) and also the envisaged pumping arrangement are crucial variables, but the fabric itself also has some influence. By way of example, titanium–sapphire lasers ought to be pumped with higher intensities, for which the form of the transversely cooled rod, operated with rather smaller pump and laser beam diameter, is a lot more acceptable than e.
It could be oriented for around perpendicular incidence on the laser beam, or at Brewster's angle. It may be set in some solid mount which also functions for a heat sink. Larger sized crystals are usually useful for facet pumping e.g. with superior-electricity diode bars.
The most typical laser-Energetic rare earth ions and host media along with some usual emission wavelengths are demonstrated in the subsequent desk:
Several laser crystal components have already been shown in which some saturable absorber substance is incorporated for passive Q switching of a laser.
For numerous good reasons, composite crystals are becoming well known. These Have a very spatially various chemical composition and might be produced with special shapes.
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。
With That idea, 1 will not require a further saturable absorber crystal, so that a single may possibly make a lot more compact Q-switched laser setups with decrease inside parasitic losses. Nevertheless, unwelcome side effects can also manifest, for example acquiring undesirable valence states with the involved ions or energy transfers.
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It is apparent that different purposes produce extremely distinct demands on laser acquire media. For this reason, a wide selection of different crystals are utilized, and making the ideal selection is important for constructing lasers check here with optimum effectiveness.
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。