5 Simple Techniques For Laser Crystal
5 Simple Techniques For Laser Crystal
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These tables incorporate only the most common host crystals; several Many others exist, which happen to be significantly less commonly utilised.
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。
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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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。
Laser modeling and simulation may be used to reliably figure out the the best possible crystal Proportions, doping density and possibly values of supplemental parameters.
量子效率是发射光子数量与吸收光子数量的比率。高量子效率表明更大部分吸收能量被转化为激光光束，有助于提高激光的整体效率。
For quasi-three-amount laser acquire media or maybe three-stage gain media, one particular typically needs to limit the size to a price which can be too brief for effective pump absorption, as reabsorption effects would in any other case spoil the overall performance. For facet pumping, further criteria come into Enjoy; besides productive pump absorption, it's important to get an appropriate spatial condition in the attain profile.
Various crystalline materials are quite distinctive concerning their hardness together with other Qualities, which figure website out with which procedures And the way very easily they can be Lower and polished with good quality.
In 2017, we created the whole world’s major 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 extensive emission spectra drives the event of laser diode pumped ultrafast sound-state lasers. With the rise in pulse Power, peak electrical power, and repetition fee of solid-condition lasers, laser crystals will acquire to greater measurements, larger crystal excellent, and controllable important performance.
It could be oriented for near perpendicular incidence of the laser beam, or at Brewster's angle. It may be fastened in some good mount which also acts for a heat sink. More substantial crystals are often utilized for side pumping e.g. with high-electricity diode bars.
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