Laser Crystal No Further a Mystery
Laser Crystal No Further a Mystery
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The most common laser-Lively scarce earth ions and host media along with some usual emission wavelengths are demonstrated in the following table:
These ions help the crystal to amplify light for the laser wavelength via stimulated emission, when Power is supplied for the crystal by using absorption of pump light (�?optical pumping
激光晶体是固态激光器的核心。它们是光放大发生的媒介，产生激光束。在这篇全面指南中，我们深入探讨激光晶体的世界。
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。
The host medium influences strongly the wavelength, bandwidth and changeover cross-sections of pump and laser transitions and in addition the higher-state life time.
晶体的光学质量对激光器的有效运行至关重要。晶体中的缺陷或杂质可能导致光散射、吸收甚至损坏晶体。高光学质量确保了稳定和高质量的激光束。
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 number of laser crystal materials are shown in which some saturable absorber substance is incorporated for passive Q switching of the laser.
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-3-level laser attain media as well as three-stage obtain media, 1 normally should Restrict the length to a worth that is far too brief for successful pump absorption, as reabsorption effects would normally spoil the performance. For side pumping, added criteria come into Perform; Moreover economical pump absorption, it is vital to get an acceptable spatial shape of your achieve profile.
材料 激光晶体 晶体生长 光学性能 稀土离子 过渡族离子 products laser crystal crystal growth optical efficiency exceptional earth ions changeover team ions
The medium ought to have a substantial transparency (reduced absorption and scattering) during the wavelength locations of pump and laser radiation, and superior optical homogeneity. To some extent, this depends on the quality of the fabric, based on details of the fabrication method.
It could be oriented for near perpendicular incidence of the laser beam, or at Brewster's angle. It more info can be fixed in certain good mount which also functions being a heat sink. Bigger crystals are generally employed for side pumping e.g. with higher-power diode bars.
人造红宝石激光晶体是首次实现激光输出的材料。可用焰熔法、提拉法或助熔剂法生产单晶。用提拉法容易获得大尺寸优质晶体。