About Laser Crystal
About Laser Crystal
Blog Article
These tables include only the commonest host crystals; several Other individuals exist, that happen to be significantly less frequently used.
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Laser crystals are optical crystals �?commonly solitary crystals (monocrystalline optical components) �?which can be made use of as get media for stable-point out lasers. Most often, They can be doped with possibly trivalent rare earth ions or transition metal ions.
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Which geometry, dopant and doping concentration from the get medium are most useful count on various variables. The available pump supply (type of laser diode or lamp) along with the envisaged pumping arrangement are important factors, but the fabric itself also has some influence. By way of example, titanium–sapphire lasers have to be pumped with large intensities, for which the shape of a transversely cooled rod, operated with somewhat small pump and laser beam diameter, is 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。
激光晶体的损伤阈值与其能承受的最大光强有关，而不会遭受物理或结构损伤。高损伤阈值对于确保高功率激光应用的耐久性和长寿命至关重要。
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。
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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In 2017, we made the whole world’s largest Ti∶sapphire crystal (Φ235 mm), which supported The ten PW laser output of Shanghai Superintense Ultrafast Laser Facility. The development of Yb and Tm doped GdScO3 laser crystals with particularly broad emission spectra drives the development of laser diode pumped ultrafast good-point out lasers. With the rise in pulse energy, peak energy, and repetition rate of reliable-condition lasers, laser crystals will produce in direction of more substantial measurements, larger crystal top quality, and controllable critical general performance.
With that concept, a person will not have to have an additional saturable absorber crystal, making sure that 1 may possibly make extra compact Q-switched laser setups with reduce inner parasitic losses. On the other hand, unwelcome side effects could also occur, like obtaining unwanted valence states from the involved ions or energy transfers.
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