New Step by Step Map For Laser Crystal
New Step by Step Map For Laser Crystal
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These tables have only the most typical host crystals; quite a few others exist, which can be considerably less commonly used.
激光晶体的极化性能可能会影响输出激光束的质量和特性。有些激光晶体产生线性偏振光，这对某些应用可能有益。
Laser crystals are optical crystals �?normally one crystals (monocrystalline optical components) �?that are made use of as obtain media for good-state lasers. Typically, They're doped with both trivalent exceptional earth ions or changeover metallic ions.
In addition, some flexibility is dropped in experiments if just one cannot try out absorbers with distinct thickness or doping concentration, such as, without exchanging the laser crystal itself.
Which geometry, dopant and doping concentration from the obtain medium are most advantageous depend on a number of things. The available pump resource (style of laser diode or lamp) plus the envisaged pumping arrangement are very important aspects, but the material alone also has some affect. By way of example, titanium–sapphire lasers need to be pumped with high intensities, for which the shape of a transversely cooled rod, operated with somewhat tiny pump and laser beam diameter, is much 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。
Obviously, it is very attractive that a supplied crystal excellent is developed constantly, Despite the fact that diverse laser styles might have a unique sensitivity to material parameters.
The utmost possible doping focus can count strongly about the host material and its fabrication strategy.
激光晶体的效率在很大程度上依赖于某些属性，这些属性不仅限于其基本组成。这些特性决定了产生的激光光束的质量和随后的应用。
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For quasi-3-level laser achieve media and even three-level gain media, one generally really should Restrict the duration to a worth and that is also short for economical pump absorption, as reabsorption consequences would if not spoil the performance. For side pumping, further factors arrive into Enjoy; Moreover effective pump absorption, it's important to obtain an acceptable spatial form from the obtain profile.
材料 激光晶体 晶体生长 光学性能 稀土离子 过渡族离子 elements laser crystal crystal development optical overall performance uncommon earth ions transition group ions
The medium must have a large transparency (minimal absorption and scattering) inside the wavelength locations of pump and laser radiation, and fantastic optical homogeneity. To some extent, this depends on the standard of the material, determined by particulars from the fabrication process.
With That idea, a person will not want an additional saturable absorber crystal, in order that a person may perhaps make additional compact Q-switched laser setups with lower interior parasitic losses. Nonetheless, unwanted Negative effects can also occur, including obtaining unwelcome valence states with the involved ions or energy transfers.
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