The Definitive Guide to Nonlinear Crystal

The Definitive Guide to Nonlinear Crystal

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Distinct crystalline materials are very diverse concerning their hardness and various Homes, which determine with which approaches and how very easily they may be Reduce and polished with high 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-condition life time.

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。

For quasi-three-amount laser achieve media or simply three-amount attain media, one typically really should Restrict the size to a price which is too short for successful pump absorption, as reabsorption effects would in any other case spoil the functionality. For facet pumping, supplemental concerns come into Participate in; In addition to successful pump absorption, it's important to acquire an appropriate spatial form on the get profile.

g. a thin disk. As A further instance, Q-switched lasers attain an increased inhabitants density during the upper laser level and they are consequently more sensitive to quenching results and Strength transfer processes; thus, a decrease doping density is often suitable for these gadgets. For top-electricity lasers, lessen doping densities will often be utilized to limit the density of warmth era, While thin-disk lasers get the job done very best with remarkably doped crystals. A lot of laser merchandise usually do not get to the full general performance potential because these types of particulars have not been adequately worked out.

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In here addition, some adaptability is dropped in experiments if one are unable to try out absorbers with various thickness or doping focus, 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 focus of your gain medium are most advantageous depend on a number of variables. The offered pump resource (sort of laser diode or lamp) and also the envisaged pumping arrangement are important variables, but the material alone also has some impact. For example, titanium–sapphire lasers have to be pumped with higher intensities, for which the form of a transversely cooled rod, operated with comparatively tiny pump and laser beam diameter, is much more proper than e.

These tables comprise only the most typical host crystals; several others exist, which happen to be much less often used.

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A handful of laser crystal materials happen to be demonstrated where some saturable absorber content is integrated for passive Q switching of the laser.

For many causes, composite crystals are becoming well-liked. These have a spatially varying chemical composition and may be designed with Exclusive designs.

There is an array of crystalline media, that may be grouped in accordance to important atomic constituents and crystalline constructions. Some vital groups of crystals are:

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Laser crystals are optical crystals �?typically solitary crystals (monocrystalline optical products) �?which can be applied as gain media for sound-point out lasers. In most cases, They may be doped with both trivalent scarce 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。