The Single Best Strategy To Use For Laser Crystal
The Single Best Strategy To Use For Laser Crystal
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Distinctive crystalline supplies are quite distinct concerning their hardness and various Qualities, which determine with which approaches And just how quickly they may be Lower 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 crystal is a lot more than just a method to repair the laser-active ions at sure positions in Room. Numerous properties of the host product are 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 utmost probable doping concentration can depend strongly over the host content and its fabrication technique.
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A higher harm threshold with regard to pulse fluence or peak intensity can be vital for prime-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 concentration of your achieve medium are most advantageous rely upon quite a few variables. The available pump resource (form of laser diode or lamp) as well as the envisaged pumping arrangement are crucial factors, but the fabric by itself also has some influence. As an example, titanium–sapphire lasers have to be pumped with substantial intensities, for which click here the form of a transversely cooled rod, operated with fairly compact pump and laser beam diameter, is more proper than e.
It could be oriented for near perpendicular incidence from the laser beam, or at Brewster's angle. It can be set in a few reliable mount which also functions as a heat sink. Much larger crystals are frequently utilized for side pumping e.g. with higher-electricity diode bars.
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A number of laser crystal products are actually shown wherever some saturable absorber content is included for passive Q switching of the laser.
For several motives, composite crystals have gotten common. These Have a very spatially varying chemical composition and may be made with Particular styles.
There is certainly a wide array of crystalline media, which can be grouped according to big atomic constituents and crystalline buildings. Some crucial teams of crystals are:
With That idea, one particular would not need to have yet another saturable absorber crystal, so that a single could make more compact Q-switched laser setups with reduce inner parasitic losses. Nonetheless, undesirable side effects might also happen, including acquiring unwelcome valence states of your included ions or Strength transfers.
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Laser crystals are optical crystals �?ordinarily one crystals (monocrystalline optical materials) �?which might be made use of as achieve media for sound-state lasers. In most cases, they are doped with possibly trivalent exceptional earth ions or transition metal 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。