Laser Crystal No Further a Mystery
Laser Crystal No Further a Mystery
Blog Article
The most typical laser-Lively rare earth ions and host media along with some typical emission wavelengths are revealed in the next table:
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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。
g. a thin disk. As A further instance, Q-switched lasers access a greater populace density during the upper laser degree and so are hence much more sensitive to quenching outcomes and Electrical power transfer processes; consequently, a decrease doping density is frequently suitable for these devices. For high-electrical power lasers, decrease doping densities in many cases are utilized to Restrict the density of heat generation, Even though skinny-disk lasers function best with extremely doped crystals. Many laser products do not get to the entire functionality prospective simply because this sort of particulars haven't been effectively 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。
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。
It is apparent that various programs bring about quite unique necessities on laser acquire media. Because of this, a broad here variety of different crystals are used, and making the ideal preference is important for developing lasers with the best possible general performance.
主体材料中活性离子掺杂物的数量是关键因素。它影响了激光的效率和性能。过低的浓度可能导致低输出，过高的浓度可能导致消光效应，降低晶体的效率。
In 2017, we made the globe’s largest Ti∶sapphire crystal (Φ235 mm), which supported the 10 PW laser output of Shanghai Superintense Ultrafast Laser Facility. The event of Yb and Tm doped GdScO3 laser crystals with exceptionally vast emission spectra drives the event of laser diode pumped ultrafast good-state lasers. With the rise in pulse Electrical power, peak electrical power, and repetition rate of reliable-point out lasers, laser crystals will establish toward bigger measurements, increased crystal excellent, and controllable vital performance.
It could be oriented for close to perpendicular incidence of your laser beam, or at Brewster's angle. It could be mounted in certain good mount which also functions like a warmth sink. Larger crystals are often useful for facet pumping e.g. with high-electricity 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。