Laser Crystal Secrets
Laser Crystal Secrets
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Obvious strong-condition lasers based on laser crystals are compact and light-weight. Lasers from deep red to blue happen to be described. Specifically, there were loads of studies on Pr3+ doped laser crystals, and continuous wave lasers all over 490 nm have already been realized. Ti∶sapphire is the leading gain crystal for ultrafast lasers. Superintense ultrafast lasers with peak ability starting from numerous hundred terawatts to 10 petawatts require higher-high-quality and enormous-sized Ti∶sapphire crystal. The origin of defect relevant optical absorption in Ti∶sapphire and the growth of enormous-sized significant-high-quality crystals are two important problems that urgently have to be addressed. Recently, we analyzed the system of defect associated optical absorption in Ti∶sapphire theoretically, and grew big-sized substantial-high quality crystals through heat Trade method. The most crucial activating ions for 1 μm laser crystals are Nd3+ and Yb3+. Nd∶YAG could be the most widely utilized laser crystal. Lately, we explored various new Nd3+ doped fluoride and oxide laser crystals, and solved the emission cross area difficulty of Nd∶Lu3Al5O12. SIOM documented a new type of laser crystal Yb∶GdScO3, of which the achieve bandwidth is about eighty five nm. The usually utilised activation ions for 2 μm laser crystals are Tm3+ and Ho3+. Tm3+ can be right pumped by laser diode. Ho3+ has much larger stimulated emission cross section, and its emission wavelength is extended than 2 μm. We examined 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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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。
Of course, it is rather fascinating that a supplied crystal good quality is generated consistently, although different laser designs can have a unique sensitivity to content parameters.
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。
Laser modeling and simulation can be employed to reliably identify the ideal crystal Proportions, doping density and possibly values of added parameters.
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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