New Step by Step Map For Laser Crystal
New Step by Step Map For Laser Crystal
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The most typical laser-Energetic exceptional earth ions and host media along with some standard emission wavelengths are proven in the following desk:
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激光晶体是固态激光器的核心。它们是光放大发生的媒介，产生激光束。在这篇全面指南中，我们深入探讨激光晶体的世界。
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Which geometry, dopant and doping concentration from the acquire medium are most advantageous depend on several factors. The available pump resource (form of laser diode or lamp) along with the envisaged pumping arrangement are essential things, but the fabric itself also has some impact. One example is, titanium–sapphire lasers have to be pumped with significant intensities, for which the form of the transversely cooled rod, operated with comparatively small pump and laser beam diameter, is a lot more suitable than e.
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A superior surface good quality is certainly essential. Specs of surface area flatness in many cases are much better than . This allows to avoid each scattering losses and wavefront distortions which could degrade the laser's beam excellent. Also, scratch and dig requirements
The utmost doable doping focus can depend strongly over the host product and its fabrication technique.
The host crystal is a great deal more than simply a means to fix the laser-Energetic ions at selected positions in space. Several Houses of your host material are important:
量子效率是发射光子数量与吸收光子数量的比率。高量子效率表明更大部分吸收能量被转化为激光光束，有助于提高激光的整体效率。
It is obvious that distinctive purposes bring about very diverse prerequisites read more on laser acquire media. For this reason, a wide assortment of different crystals are utilised, and producing the ideal selection is important for developing lasers with optimum effectiveness.
材料 激光晶体 晶体生长 光学性能 稀土离子 过渡族离子 resources laser crystal crystal growth optical efficiency exceptional earth ions changeover team ions
The medium should have a superior transparency (lower absorption and scattering) inside the wavelength locations of pump and laser radiation, and fantastic optical homogeneity. To some extent, this is determined by the standard of the material, based on specifics of your fabrication method.
It could be oriented for near perpendicular incidence from the laser beam, or at Brewster's angle. It can be set in some solid mount which also acts as a warmth sink. Larger crystals are usually used for facet pumping e.g. with significant-electric power diode bars.
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。