Laser Crystal for Dummies
Laser Crystal for Dummies
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The commonest laser-Energetic unusual earth ions and host media together with some normal emission wavelengths are demonstrated in the next table:
These ions help the crystal to amplify gentle on the laser wavelength via stimulated emission, when Electrical power is provided to the crystal by means of absorption of pump light (�?optical pumping
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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 concentration from the acquire medium are most advantageous depend on several factors. The available pump resource (sort of laser diode or lamp) along with the envisaged pumping arrangement are very important components, but the fabric itself also has some influence. For instance, titanium–sapphire lasers have to be pumped with high intensities, for which the shape of a transversely cooled rod, operated with fairly small pump and laser beam diameter, is a lot more proper than e.
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Obviously, it is rather attractive that a offered crystal top quality is created continually, Even though distinctive laser types can have a distinct sensitivity to material parameters.
g. a skinny disk. As another instance, Q-switched lasers access a higher populace density in the upper laser degree and so are hence much more sensitive to quenching results and Strength transfer procedures; thus, a lower doping density is often suitable for these equipment. For prime-electric power lasers, decrease doping densities in many cases are accustomed to limit the density of heat technology, While skinny-disk lasers function best with really doped crystals. A lot of laser items don't get to the total overall performance opportunity due to the fact this kind of facts have not been appropriately labored out.
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。
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。
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Distinct crystalline materials are certainly various relating to their hardness as well as other Houses, which figure out with which procedures And exactly how very easily they are often cut and polished with good quality.
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There is a wide range of crystalline media, which can be grouped according to special atomic constituents and crystalline constructions. Some significant teams of crystals are:
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