Detailed Notes on Laser Crystal
Detailed Notes on Laser Crystal
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These tables include only the most common host crystals; quite a few Other people exist, which might be much less often applied.
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为了使激光器有效运作，需要有效管理运行过程中产生的热量。具有良好热导率的激光晶体可以更有效地散热，防止热透镜效应或断裂。
Furthermore, some overall flexibility is shed in experiments if one can not try out absorbers with distinct thickness or doping concentration, for example, with no exchanging the laser crystal by itself.
Which geometry, dopant and doping focus from the obtain medium are most advantageous rely upon several components. The offered pump resource (variety of laser diode or lamp) plus the envisaged pumping arrangement are important variables, but the material alone also has some affect. As an example, titanium–sapphire lasers need to be pumped with superior intensities, for which the shape of a transversely cooled rod, operated with relatively smaller pump and laser beam diameter, is more correct 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。
Naturally, it is extremely appealing that a given crystal high-quality is manufactured continually, While diverse laser styles might have a distinct sensitivity to materials Laser Crystal 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。
The host crystal is way more than just a means to fix the laser-Lively ions at certain positions in space. Quite a few Qualities with the host material are essential:
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。
It is obvious that diverse purposes lead to very various needs on laser obtain media. For that reason, a wide variety of different crystals are used, and earning the right preference is important for setting up lasers with optimum general performance.
材料 激光晶体 晶体生长 光学性能 稀土离子 过渡族离子 components laser crystal crystal expansion optical performance uncommon earth ions transition group ions
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It could be oriented for close to perpendicular incidence with the laser beam, or at Brewster's angle. It may be preset in a few stable mount which also acts as a heat sink. Much larger crystals are frequently used for facet pumping e.g. with substantial-electric power diode bars.
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