The best Side of Laser Crystal
The best Side of Laser Crystal
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The commonest laser-Lively rare earth ions and host media along with some common emission wavelengths are shown in the subsequent desk:
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。
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。
The host medium influences strongly the wavelength, bandwidth and transition cross-sections of pump and laser transitions and likewise the higher-state life time.
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。
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。
The maximum doable doping concentration can count strongly around the host product and its fabrication approach.
The host crystal is a great deal more than simply a means to fix the laser-Energetic ions at sure positions in space. Quite a few Attributes of the host materials are very important:
热膨胀和收缩系数对确定激光晶体的热透镜特性至关重要。最小化热透镜效应对于在广泛的操作温度范围内保持光束质量至关重要。
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Diverse crystalline elements are incredibly unique concerning their hardness and other Houses, which establish with which procedures And the way easily they are often Lower and polished with good quality.
For numerous good reasons, composite crystals have become preferred. These Have a very spatially various chemical composition and may be produced with Distinctive shapes.
It could be oriented for close to perpendicular incidence of your laser beam, or at Brewster's angle. It can be fixed in a few strong mount which also acts as a warmth sink. More substantial crystals usually are used for aspect pumping e.g. with high-power diode bars.
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