Not known Facts About Laser Crystal
Not known Facts About Laser Crystal
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The most common laser-Lively rare earth ions and host media along with some standard emission wavelengths are shown in the subsequent 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 focus from the get medium are most useful count on quite a few elements. The obtainable pump source (style of laser diode or lamp) plus the envisaged pumping arrangement are essential components, but the fabric itself also has some influence. By way of example, titanium–sapphire lasers must be pumped with large intensities, for which the form of a transversely cooled rod, operated with relatively smaller pump and laser beam diameter, is more appropriate than e.
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活性离子在激光晶体内发生的能量跃迁对激光操作至关重要。大多数激光操作都是通过四能级系统原理进行的，确保连续操作并防止浪费的非辐射衰变。
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。
激光晶体的效率在很大程度上依赖于某些属性，这些属性不仅限于其基本组成。这些特性决定了产生的激光光束的质量和随后的应用。
热膨胀和收缩系数对确定激光晶体的热透镜特性至关重要。最小化热透镜效应对于在广泛的操作温度范围内保持光束质量至关重要。
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主体材料中活性离子掺杂物的数量是关键因素。它影响了激光的效率和性能。过低的浓度可能导致低输出，过高的浓度可能导致消光效应，降低晶体的效率。
In 2017, we produced the entire world’s major Ti∶sapphire crystal (Φ235 mm), which supported The ten PW laser output of Shanghai Superintense Ultrafast Laser Facility. The development of Yb and Tm doped get more info GdScO3 laser crystals with incredibly large emission spectra drives the event of laser diode pumped ultrafast stable-condition lasers. With the increase in pulse energy, peak electrical power, and repetition level of solid-point out lasers, laser crystals will produce toward greater sizes, bigger crystal excellent, and controllable critical overall performance.
It may be oriented for around perpendicular incidence with the laser beam, or at Brewster's angle. It might be set in some sound mount which also acts like a heat sink. Greater crystals are frequently employed for side pumping e.g. with large-electrical power diode bars.
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。