The Greatest Guide To Laser Crystal

The Greatest Guide To Laser Crystal

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These tables include only the most common host crystals; numerous others exist, which can be fewer routinely 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。

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。

Which geometry, dopant and doping focus with the achieve medium are most advantageous depend upon a number of factors. The readily available pump resource (sort of laser diode or lamp) as well as the envisaged pumping arrangement are crucial factors, but the material by itself also has some influence. Such as, titanium–sapphire lasers need to be pumped with large intensities, for which the form of a transversely cooled rod, operated with fairly modest pump and laser beam diameter, is much more acceptable 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。

Not surprisingly, it is vitally fascinating that a offered crystal excellent is created continually, although different laser layouts might have a different sensitivity to product parameters.

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。

The host crystal is way more than simply a way to fix the laser-Lively ions at sure positions in space. Several Houses on the host materials 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。

For quasi-three-amount laser attain media or maybe a few-stage obtain media, a single often should Restrict the duration to a value click here which can be way too shorter for productive pump absorption, as reabsorption consequences would if not spoil the effectiveness. For side pumping, extra concerns arrive into play; besides productive pump absorption, it is crucial to get a suitable spatial condition with the attain profile.

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The medium ought to have a higher transparency (low absorption and scattering) within the wavelength regions of pump and laser radiation, and excellent optical homogeneity. To some extent, this relies on the quality of the material, determined by facts from the fabrication method.

There exists a wide range of crystalline media, that may be grouped according to special atomic constituents and crystalline buildings. Some essential groups of crystals are:

人造红宝石激光晶体是首次实现激光输出的材料。可用焰熔法、提拉法或助熔剂法生产单晶。用提拉法容易获得大尺寸优质晶体。