Nonlinear Crystal - An Overview
Nonlinear Crystal - An Overview
Blog Article
Diverse crystalline resources are very different about their hardness and other Houses, which ascertain with which approaches and how quickly they are often cut and polished with good 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 transition cross-sections of pump and laser transitions as well as the upper-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 utmost probable doping focus can rely strongly about the host product and its fabrication technique.
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Furthermore, some flexibility is missing in experiments if just one are not able to try out absorbers with unique thickness or doping concentration, for example, devoid of exchanging the laser crystal by itself.
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 on the gain medium are most useful count on quite a few things. The offered pump supply (variety of laser diode or lamp) as well as envisaged pumping arrangement are essential variables, but the fabric alone also has some affect. One example is, titanium–sapphire lasers ought to be pumped with large intensities, for which the form of the transversely cooled rod, operated with reasonably smaller pump and laser beam diameter, is more proper than e.
It could be oriented for close to perpendicular incidence in the laser beam, or at Brewster's angle. It can be mounted in some stable mount which also functions as a warmth sink. Larger sized crystals are often employed for side pumping e.g. with significant-electric power diode bars.
The commonest laser-active scarce earth ions and host media along with some typical emission wavelengths are shown in the subsequent desk:
A few laser crystal materials have been shown where some saturable absorber content is integrated for passive Q switching of a laser.
Not surprisingly, it is very fascinating that a offered crystal quality is generated regularly, Despite the fact that different Nonlinear Crystal laser patterns may have a unique 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。
With That idea, one particular will not need yet another saturable absorber crystal, to ensure a single may make additional compact Q-switched laser setups with reduce interior parasitic losses. On the other hand, unwelcome Unwanted side effects might also occur, which include acquiring unwelcome valence states with the concerned ions or Power transfers.
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Laser crystals are optical crystals �?typically single crystals (monocrystalline optical products) �?which might be utilised as attain media for reliable-state lasers. Usually, they are doped with both trivalent scarce earth ions or transition 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。