Laser Crystal for Dummies
Laser Crystal for Dummies
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The commonest laser-active unusual earth ions and host media together with some typical emission wavelengths are shown in the next table:
These ions empower the crystal to amplify gentle with the laser wavelength by means of stimulated emission, when Strength is provided for the crystal by way of absorption of pump light (�?optical pumping
Laser crystals are optical crystals �?normally single crystals (monocrystalline optical supplies) �?which are made use of as get media for reliable-point out lasers. In most cases, These are doped with possibly trivalent unusual earth ions or transition metallic 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。
Which geometry, dopant and doping concentration in the acquire medium are most useful depend on various aspects. The available pump resource (sort of laser diode or lamp) as well as envisaged pumping arrangement are very important factors, but the fabric alone also has some affect. Such as, titanium–sapphire lasers must be pumped with superior intensities, for which the form of the transversely cooled rod, operated with relatively modest pump and laser beam diameter, is a lot more suitable than e.
晶体的光学质量对激光器的有效运行至关重要。晶体中的缺陷或杂质可能导致光散射、吸收甚至损坏晶体。高光学质量确保了稳定和高质量的激光束。
激光晶体的损伤阈值与其能承受的最大光强有关，而不会遭受物理或结构损伤。高损伤阈值对于确保高功率激光应用的耐久性和长寿命至关重要。
探索激光晶体的领域，可以让我们看到科学和技术相结合的奇迹，为我们带来了令人难以置信的进步。这些激光晶体，每一种都在组成和特性上独具匠心，是推动现代世界众多应用的动力。
The host crystal is a lot more than just a way to repair the laser-active ions at sure positions in Room. Numerous Attributes in the host product are very important:
激光晶体的核心由固态晶体材料组成，通常掺杂了某些能够通过受激发射产生光放大的离子。这些离子的性质对激光晶体的性能起决定作用。
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Different crystalline elements are incredibly different relating to their hardness as well as other Attributes, which establish read more with which methods And exactly how quickly they can be Minimize and polished with good quality.
The medium ought to have a large transparency (low absorption and scattering) inside the wavelength areas of pump and laser radiation, and excellent optical homogeneity. To some extent, this relies on the quality of the material, determined by particulars of the fabrication course of action.
It may be oriented for around perpendicular incidence on the laser beam, or at Brewster's angle. It might be fixed in some reliable mount which also functions to be a heat sink. Bigger crystals are frequently useful for facet pumping e.g. with high-energy diode bars.
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