The best Side of Laser Crystal
The best Side of Laser Crystal
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The most typical laser-Lively unusual earth ions and host media along with some common emission wavelengths are proven in the next desk:
These ions allow the crystal to amplify gentle on the laser wavelength via stimulated emission, when Vitality is provided towards the crystal by means of absorption of pump gentle (�?optical pumping
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In addition, some versatility is shed in experiments if one particular are not able to Check out absorbers with different thickness or doping concentration, for example, with out exchanging the laser crystal itself.
Which geometry, dopant and doping focus with the attain medium are most beneficial rely upon quite a few variables. The readily available pump supply (kind of laser diode or lamp) and also the envisaged pumping arrangement are crucial factors, but the fabric by itself also has some influence. Such as, titanium–sapphire lasers must be pumped with substantial intensities, for which the shape of a transversely cooled rod, operated with relatively compact pump and laser beam diameter, is a lot more correct than e.
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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。
The host crystal is way more than simply a means to repair the laser-active ions at selected positions in Room. A number of Houses from the host product are essential:
激光晶体的核心由固态晶体材料组成，通常掺杂了某些能够通过受激发射产生光放大的离子。这些离子的性质对激光晶体的性能起决定作用。
For quasi-a few-level laser acquire media as well as a few-amount gain media, a single typically really should Restrict the duration to a value which can be way too small for productive pump absorption, as reabsorption results would normally spoil the general performance. For side pumping, extra factors arrive into Engage in; Aside from successful pump absorption, it is crucial to acquire an acceptable spatial form on the achieve click here profile.
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It may be oriented for in close proximity to perpendicular incidence from the laser beam, or at Brewster's angle. It may be preset in a few strong mount which also acts as being a heat sink. Larger crystals are generally used for aspect pumping e.g. with high-ability diode bars.
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。