The best Side of Laser Crystal
The best Side of Laser Crystal
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Distinct crystalline elements are incredibly distinctive relating to their hardness and various Houses, which establish with which techniques And exactly how simply they can be Slash and polished with high quality.
The medium should have a substantial transparency (reduced absorption and scattering) during the wavelength regions of pump and laser radiation, and superior optical homogeneity. To some extent, this depends on the caliber of the fabric, based on aspects in the fabrication system.
The host crystal is considerably more than simply a method to fix the laser-active ions at selected positions in Area. Many Qualities of your host content are crucial:
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For quasi-three-stage laser get media as well as three-amount get media, 1 normally should limit the duration to a price which can be much too small for successful pump absorption, as reabsorption results would in any other case spoil the overall performance. For facet pumping, more issues come into play; In addition to productive pump absorption, it can be crucial to obtain a suitable spatial shape from the get profile.
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A substantial harm threshold concerning pulse fluence or peak intensity is usually critical for high-Electrical power 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 of the attain medium are most useful rely upon numerous aspects. The available pump supply (sort of laser diode or lamp) and the envisaged pumping arrangement are essential elements, but the fabric alone also has some affect. For instance, titanium–sapphire lasers ought to be pumped with higher intensities, for which the shape of a transversely cooled rod, operated with fairly modest pump and laser beam diameter, is a lot more ideal than e.
It could be oriented for near perpendicular incidence on the laser beam, or at Brewster's angle. It can be set in some strong mount which also functions as a heat sink. Greater crystals more info are usually useful for facet pumping e.g. with substantial-electricity diode bars.
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Some laser crystal supplies are demonstrated in which some saturable absorber materials is integrated for passive Q switching of the laser.
Naturally, it is vitally fascinating that a provided crystal quality is generated regularly, Despite the fact that diverse laser patterns may have a distinct sensitivity to substance 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。
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It is obvious that diverse applications produce quite unique necessities on laser attain media. Because of this, a broad variety of various crystals are used, and making the appropriate selection is important for setting up lasers with optimum overall performance.
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。