Laser Crystal No Further a Mystery

Laser Crystal No Further a Mystery

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The commonest laser-Lively scarce earth ions and host media along with some regular emission wavelengths are demonstrated in the next table:

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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。

Also, some adaptability is lost in experiments if a single are unable to Check out absorbers with distinctive thickness or doping focus, for example, with out exchanging the laser crystal itself.

Which geometry, dopant and doping concentration on the achieve medium are most advantageous depend on several factors. The available pump resource (form of laser diode or lamp) along with the envisaged pumping arrangement are essential factors, but the fabric by itself also has some impact. One example is, titanium–sapphire lasers must be pumped with higher intensities, for which the shape of a transversely cooled rod, operated with relatively compact pump and laser beam diameter, is much more appropriate 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。

活性离子在激光晶体内发生的能量跃迁对激光操作至关重要。大多数激光操作都是通过四能级系统原理进行的，确保连续操作并防止浪费的非辐射衰变。

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 far more than just a way to repair the laser-Lively ions at certain positions in Room. A variety of Attributes of your 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 unique apps produce pretty different requirements on laser gain media. Because of this, a wide vary of various crystals are employed, and producing the correct option is important for setting up lasers with optimum overall performance.

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For many explanations, composite crystals are getting to be common. These Have a very spatially varying chemical composition and will be manufactured with special designs.

It could be oriented for in the vicinity of perpendicular incidence of the laser beam, or at Brewster's angle. It can be fixed in certain good mount which also functions for a warmth sink. More substantial crystals usually are employed for side pumping e.g. with higher-power diode bars.

激光晶体（laser Laser Crystal 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。