What Does Laser Crystal Mean?
What Does Laser Crystal Mean?
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Different crystalline supplies are very distinct about their hardness and various Qualities, which establish with which approaches And exactly how very easily they can be Slash and polished with good quality.
The medium should have a large transparency (reduced absorption and scattering) in the wavelength locations of pump and laser radiation, and excellent optical homogeneity. To some extent, this depends upon the quality of the fabric, determined by facts of your fabrication approach.
The host crystal is considerably more than just a means to repair the laser-Lively ions at particular positions in Area. A variety of properties on the host materials are crucial:
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The maximum attainable doping focus can depend strongly about the host material and its fabrication technique.
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A superior injury threshold in terms of pulse fluence or peak intensity can be critical for top-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 in the obtain medium are most beneficial count on a number of variables. The out there pump source (sort of laser diode or lamp) plus the envisaged pumping arrangement are Laser Crystal crucial elements, but the material by itself also has some affect. Such as, titanium–sapphire lasers have to be pumped with higher intensities, for which the form of a transversely cooled rod, operated with reasonably compact pump and laser beam diameter, is a lot more appropriate than e.
It may be oriented for close to perpendicular incidence on the laser beam, or at Brewster's angle. It could be fastened in a few stable mount which also functions for a warmth sink. Much larger crystals tend to be useful for facet pumping e.g. with significant-electric power diode bars.
The most common laser-active scarce earth ions and host media along with some normal emission wavelengths are proven in the following desk:
A couple of laser crystal elements happen to be shown where some saturable absorber content is included for passive Q switching of a laser.
For several factors, composite crystals have gotten popular. These Possess a spatially various chemical composition and will be produced with Specific styles.
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 concept, one particular isn't going to will need a further saturable absorber crystal, to make sure that a person may perhaps make extra compact Q-switched laser setups with lessen interior parasitic losses. Having said that, unwelcome side effects could also manifest, for instance acquiring undesirable valence states from the involved ions or Electrical power transfers.
GWU gives all common laser crystals (Nd:YVO4, Nd:YAG, Yb:YAG etcetera.) that has a broad number of technical specs. Moreover the properly-set up products, impressive crystals with exceptional properties like Yb:CALGO can open up new horizons for demanding laser applications. It doesn't matter no matter if personal parts for R & D reasons are required or Value-efficient figures in little, medium or substantial batches with in-time delivery for that manufacturing line are wanted: GWU’s dedicated provider helps to discover the most effective core parts for your personal application.
It is apparent that distinct apps produce very distinct necessities on laser attain media. For this reason, a broad assortment of different crystals are utilised, and building the ideal choice is essential for constructing lasers with optimum efficiency.
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。