Laser Crystal No Further a Mystery
Laser Crystal No Further a Mystery
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These tables include only the most typical host crystals; lots of Other folks exist, which can be much less frequently employed.
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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 in the acquire medium are most advantageous count on various aspects. The obtainable pump resource (form of laser diode or lamp) as well as the envisaged pumping arrangement are important variables, but the fabric itself also has some impact. By way of example, titanium–sapphire lasers must be pumped with higher intensities, for which the shape of the transversely cooled rod, operated with fairly small pump and laser beam diameter, is much more suitable 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 obvious that diverse apps bring on pretty distinctive click here requirements on laser acquire media. For that reason, a broad variety of different crystals are utilized, and building the correct selection is important for setting up lasers with the best possible effectiveness.
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 whole world’s biggest Ti∶sapphire crystal (Φ235 mm), which supported the 10 PW laser output of Shanghai Superintense Ultrafast Laser Facility. The event of Yb and Tm doped GdScO3 laser crystals with exceptionally large emission spectra drives the development of laser diode pumped ultrafast sound-condition lasers. With the rise in pulse Electrical power, peak energy, and repetition charge of reliable-condition lasers, laser crystals will acquire to bigger measurements, larger crystal good quality, and controllable essential functionality.
With that concept, a single doesn't require an additional saturable absorber crystal, to make sure that a person may possibly make a lot more compact Q-switched laser setups with reduce interior parasitic losses. Having said that, undesired Unintended effects may additionally take place, for example obtaining undesired valence states from the associated ions or Vitality transfers.
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。