5 Simple Techniques For Laser Crystal
5 Simple Techniques For Laser Crystal
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The most typical laser-active uncommon earth ions and host media together with some common emission wavelengths are shown in the subsequent desk:
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为了使激光器有效运作，需要有效管理运行过程中产生的热量。具有良好热导率的激光晶体可以更有效地散热，防止热透镜效应或断裂。
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。
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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。
Naturally, it's very fascinating that a provided crystal top quality is created regularly, Though various laser layouts may have a different sensitivity to substance parameters.
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 far more than simply a method to fix the laser-Lively ions at particular positions in Room. Many properties in the host substance are crucial:
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。
Those surfaces which might be passed with the laser beam are Commonly either oriented at Brewster's angle or have an anti-reflection coating.
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 developed the earth’s biggest 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 very large emission spectra drives the development of laser diode pumped ultrafast reliable-point out lasers. With the rise in pulse Vitality, peak electric power, and repetition rate of sound-condition lasers, laser crystals will acquire to bigger sizes, larger crystal excellent, and controllable critical performance.
It could be oriented for in close proximity to perpendicular incidence with the laser beam, or at Brewster's angle. It might be preset in certain good mount which also functions to be a warmth sink. Larger sized crystals are usually useful for facet pumping e.g. with significant-electric power diode bars.
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