Laser Crystal Secrets
Laser Crystal Secrets
Blog Article
The most typical laser-active exceptional earth ions and host media together with some regular emission wavelengths are revealed in the subsequent desk:
These ions allow the crystal to amplify gentle in the laser wavelength by means of stimulated emission, when Strength is provided on the crystal by means of absorption of pump light (�?optical pumping
Laser crystals are optical crystals �?typically solitary crystals (monocrystalline optical products) �?which are applied as obtain media for good-point out lasers. Usually, they are doped with both trivalent scarce earth ions or changeover metal ions.
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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。
Laser modeling and simulation may be used to reliably decide the optimum crystal Proportions, doping density And perhaps values of extra parameters.
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。
It is clear that distinctive applications lead to extremely different requirements on laser acquire media. This is why, a broad assortment of different crystals are made use of, and creating the best decision is check here essential for developing lasers with optimum general performance.
材料 激光晶体 晶体生长 光学性能 稀土离子 过渡族离子 supplies laser crystal crystal progress optical performance unusual earth ions changeover team ions
In 2017, we formulated the earth’s most significant Ti∶sapphire crystal (Φ235 mm), which supported The ten PW laser output of Shanghai Superintense Ultrafast Laser Facility. The development of Yb and Tm doped GdScO3 laser crystals with very wide emission spectra drives the event of laser diode pumped ultrafast reliable-condition lasers. With the increase in pulse Electricity, peak ability, and repetition price of good-condition lasers, laser crystals will create towards larger sized measurements, greater crystal high-quality, and controllable essential efficiency.
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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。