About Laser Crystal
About Laser Crystal
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Noticeable solid-point out lasers dependant on laser crystals are compact and light. Lasers from deep crimson to blue are noted. Primarily, there have been plenty of studies on Pr3+ doped laser crystals, and continual wave lasers all around 490 nm are already accomplished. Ti∶sapphire is the primary achieve crystal for ultrafast lasers. Superintense ultrafast lasers with peak ability starting from numerous hundred terawatts to ten petawatts have to have substantial-top quality and enormous-sized Ti∶sapphire crystal. The origin of defect relevant optical absorption in Ti∶sapphire and The expansion of huge-sized superior-high-quality crystals are two essential challenges that urgently must be dealt with. Lately, we analyzed the mechanism of defect connected optical absorption in Ti∶sapphire theoretically, and grew massive-sized substantial-good quality crystals by way of heat Trade system. The key activating ions for 1 μm laser crystals are Nd3+ and Yb3+. Nd∶YAG is definitely the most generally used laser crystal. Recently, we explored several new Nd3+ doped fluoride and oxide laser crystals, and solved the emission cross portion trouble of Nd∶Lu3Al5O12. SIOM claimed a different style of laser crystal Yb∶GdScO3, of which the achieve bandwidth is about 85 nm. The commonly made use of activation ions for two μm laser crystals are Tm3+ and Ho3+. Tm3+ might be immediately pumped by laser diode. Ho3+ has larger sized stimulated emission cross part, and its emission wavelength is more time than two μm. We researched The expansion, spectroscopy, and laser effectiveness of Tm∶LiYF4, Tm∶LiLuF4, Ho∶LiYF4, Tm,Ho∶LiYF4, and Tm,Ho∶LiLuF4 crystals.
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。
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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。
作为工业上使用较多的都是高掺钇铝石榴石，也就是说掺入不同的元素来达到不同的效果；作为工业激光，关注以下性能：
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。
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。
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。
量子效率是发射光子数量与吸收光子数量的比率。高量子效率表明更大部分吸收能量被转化为激光光束，有助于提高激光的整体效率。
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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。