Detailed Notes on Laser Crystal
Detailed Notes on Laser Crystal
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These tables have only the most typical host crystals; quite a few Other people exist, which happen to be considerably less frequently utilized.
激光晶体的极化性能可能会影响输出激光束的质量和特性。有些激光晶体产生线性偏振光，这对某些应用可能有益。
Laser crystals are optical crystals �?generally single crystals (monocrystalline optical elements) �?which can be made use of as obtain media for good-condition lasers. In most cases, They can be doped with possibly trivalent uncommon earth ions or transition steel ions.
激光晶体中活性离子的作用是什么？ 活性离子在激光晶体中负责通过受激发射产生激光光线。
Which geometry, dopant and doping focus with the achieve medium are most advantageous count on a number of variables. The accessible pump resource (form of laser diode or lamp) as well as envisaged pumping arrangement are crucial elements, but the fabric by itself also has some affect. For example, titanium–sapphire lasers ought to be pumped with substantial intensities, for which the shape of a transversely cooled rod, operated with fairly smaller pump and laser beam diameter, is much more correct than e.
激光晶体由发光中心和基质晶体两部分组成。大部分激光晶体的发光中心由激活离子构成，激活离子部分取代基质晶体中的阳离子形成掺杂型激光晶体。激活离子成为基质晶体组分的一部分时，则构成自激活激光晶体。
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。
It is clear that various programs bring about quite unique necessities on laser attain media. Due to this, a wide array of various crystals are applied, and building the correct selection is essential for developing lasers with ideal efficiency.
材料 激光晶体 晶体生长 光学性能 稀土离子 过渡族离子 elements laser crystal crystal development optical functionality scarce earth ions changeover team ions
In 2017, we made the globe’s major Ti∶sapphire crystal (Φ235 mm), which supported the 10 PW laser output of Shanghai Superintense Ultrafast Laser Facility. The development of Yb and Tm doped GdScO3 laser crystals with exceptionally broad emission spectra drives the development of laser diode pumped ultrafast stable-state lasers. With the increase in pulse Strength, peak ability, and repetition price of sound-condition lasers, laser crystals will develop in click here direction of much larger dimensions, bigger crystal quality, and controllable important efficiency.
It might be oriented for in close proximity to perpendicular incidence from the laser beam, or at Brewster's angle. It may be preset in certain sound mount which also functions for a heat sink. Bigger crystals are usually useful for facet pumping e.g. with large-electricity 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。