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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。

This is straightforward to complete: just locate the lock icon in front of the URL within the address bar and drag that towards the bookmark toolbar with the mouse. In the event you locate the bookmark entry far too extensive, you could proper-click it to edit the textual content, e.g. applying "RP Enc" in place of "RP Photonics Encyclopedia".

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。

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。

亚稳态寿命也起着重要作用。较长的寿命允许更多的储能和实现粒子数反转的更高潜力，这对激光动作至关重要。

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。

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。

It is apparent that various applications bring about pretty diverse necessities on laser acquire media. Due to this, a wide variety of different crystals are made use of, and generating the best preference is important for developing lasers with optimum performance.

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In 2017, we developed the whole world’s greatest Ti∶sapphire crystal (Φ235 mm), which supported the 10 PW laser output check here of Shanghai Superintense Ultrafast Laser Facility. The event of Yb and Tm doped GdScO3 laser crystals with exceptionally large emission spectra drives the event of laser diode pumped ultrafast good-point out lasers. With the increase in pulse Electrical power, peak power, and repetition charge of good-condition lasers, laser crystals will produce towards bigger measurements, higher crystal high-quality, and controllable essential overall performance.

There is certainly a wide range of crystalline media, which may be grouped in accordance to important atomic constituents and crystalline buildings. Some essential teams of crystals are:

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。