Seen stable-point out lasers based on laser crystals are compact and light. Lasers from deep red to blue are already documented. In particular, there have been many reports on Pr3+ doped laser crystals, and continuous wave lasers around 490 nm have been achieved. Ti∶sapphire is the main gain crystal for ultrafast lasers. Superintense ultrafast lasers with peak energy starting from various hundred terawatts to 10 petawatts call for large-high quality and enormous-sized Ti∶sapphire crystal. The origin of defect linked optical absorption in Ti∶sapphire and the growth of large-sized superior-excellent crystals are two critical concerns that urgently need to be dealt with. In recent times, we analyzed the system of defect connected optical absorption in Ti∶sapphire theoretically, and grew big-sized superior-good quality crystals by means of warmth exchange method. The key activating ions for one μm laser crystals are Nd3+ and Yb3+. Nd∶YAG could be the most widely used laser crystal. Lately, we explored a number of new Nd3+ doped fluoride and oxide laser crystals, and solved the emission cross part difficulty of Nd∶Lu3Al5O12. SIOM reported a different kind of laser crystal Yb∶GdScO3, of which the attain bandwidth is about 85 nm. The usually utilised activation ions for two μm laser crystals are Tm3+ and Ho3+. Tm3+ can be right pumped by laser diode. Ho3+ has much larger stimulated emission cross part, and its emission wavelength is longer than two μm. We studied the growth, spectroscopy, and laser efficiency of Tm∶LiYF4, Tm∶LiLuF4, Ho∶LiYF4, Tm,Ho∶LiYF4, and Tm,Ho∶LiLuF4 crystals.

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Laser crystals are optical crystals �?usually single crystals (monocrystalline optical components) �?which happen to be used as gain media for reliable-state lasers. Usually, They can be doped with either trivalent uncommon earth ions or changeover metal 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。

The host medium influences strongly the wavelength, bandwidth and changeover cross-sections of pump and laser transitions in addition to the higher-condition life time.

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。

激光晶体的损伤阈值与其能承受的最大光强有关，而不会遭受物理或结构损伤。高损伤阈值对于确保高功率激光应用的耐久性和长寿命至关重要。

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。

A few laser crystal elements are already demonstrated the place some saturable absorber material is included for passive Q switching of a laser.

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。

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材料 激光晶体 晶体生长 光学性能 稀土离子 过渡族离子 materials laser crystal crystal expansion optical functionality rare earth ions changeover group ions 

For various causes, composite crystals have gotten well known. These Have got a spatially different chemical composition and can be produced with Unique shapes.

With That idea, one particular would not have to have a further saturable absorber crystal, so that just one may possibly make website additional compact Q-switched laser setups with reduced inner parasitic losses. Even so, undesirable Unwanted effects might also come about, such as acquiring unwelcome valence states on the concerned ions or energy 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。