The Laser Crystal Diaries

The Laser Crystal Diaries

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These tables contain only the commonest host crystals; a lot of Other individuals exist, that happen to be significantly less frequently made use of.

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Also, some flexibility is missing in experiments if just one are not able to Check out absorbers with various thickness or doping focus, one example is, without the need of exchanging the laser crystal alone.

Which geometry, dopant and doping focus on the gain medium are most useful count on several aspects. The obtainable pump resource (form of laser diode or lamp) as well as envisaged pumping arrangement are essential variables, but the fabric itself also has some influence. By way of example, titanium–sapphire lasers should be pumped with significant intensities, for which the shape of a transversely cooled rod, operated with comparatively modest pump and laser beam diameter, is much more acceptable than e.

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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。

A few laser crystal resources happen to be shown where some saturable absorber product is integrated for passive Q switching of the laser.

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。

It is apparent that various apps lead to incredibly diverse necessities on laser get media. This is why, a broad array of various crystals are made use of, and making the best selection is important for developing lasers with optimum overall performance.

主体材料中活性离子掺杂物的数量是关键因素。它影响了激光的效率和性能。过低的浓度可能导致低输出，过高的浓度可能导致消光效应，降低晶体的效率。

The medium must have a high transparency (very check here low absorption and scattering) in the wavelength regions of pump and laser radiation, and great optical homogeneity. To some extent, this depends on the caliber of the fabric, determined by aspects in the fabrication system.

There is certainly an array of crystalline media, that may be grouped in accordance to big atomic constituents and crystalline constructions. Some critical teams of crystals are:

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。