The smart Trick of Laser Crystal That No One is Discussing

The smart Trick of Laser Crystal That No One is Discussing

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These tables contain only the commonest host crystals; a lot of Many others exist, which are less often applied.

These ions permit the crystal to amplify mild on the laser wavelength through stimulated emission, when Strength is supplied to the crystal by using absorption of pump gentle (�?optical pumping

激光晶体是固态激光器的核心。它们是光放大发生的媒介，产生激光束。在这篇全面指南中，我们深入探讨激光晶体的世界。

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Which geometry, dopant and doping focus in the achieve medium are most advantageous rely on many elements. The accessible pump supply (style of laser diode or lamp) as well as envisaged pumping arrangement are important factors, but the material alone also has some impact. For instance, titanium–sapphire lasers need to be pumped with higher intensities, for which the form of the transversely cooled rod, operated with rather compact pump and laser beam diameter, is much more acceptable than e.

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Certainly, it is extremely appealing that a specified crystal quality is developed continually, Whilst unique laser models may have a distinct sensitivity to content 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 just a method to fix the laser-Energetic ions at certain positions in Room. A number of Attributes in the host substance are important:

热膨胀和收缩系数对确定激光晶体的热透镜特性至关重要。最小化热透镜效应对于在广泛的操作温度范围内保持光束质量至关重要。

Those surfaces which might be handed by the read more laser beam are normally possibly oriented at Brewster's angle or have an anti-reflection coating.

材料 激光晶体 晶体生长 光学性能 稀土离子 过渡族离子 supplies laser crystal crystal development optical efficiency rare earth ions changeover group ions 

The medium ought to have a significant transparency (very low absorption and scattering) during the wavelength areas of pump and laser radiation, and great optical homogeneity. To some extent, this depends on the standard of the material, based on information from the fabrication process.

With That idea, a person does not require an extra saturable absorber crystal, making sure that just one may perhaps make extra compact Q-switched laser setups with decreased inside parasitic losses. On the other hand, undesired Unintended effects could also come about, for example obtaining unwanted valence states with the concerned ions or energy transfers.

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。