The Basic Principles Of Laser Crystal
The Basic Principles Of Laser Crystal
Blog Article
The commonest laser-Energetic exceptional earth ions and host media along with some normal emission wavelengths are proven in the following table:
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。
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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。
The maximum possible doping concentration can count strongly within the host material and its fabrication strategy.
The host crystal is considerably more than simply a method to fix the laser-active ions at specified positions in House. Several Houses from the host content 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。
These surfaces that are handed with the laser beam are Usually possibly oriented at Brewster's angle or have an anti-reflection coating.
Unique crystalline read more supplies are quite different regarding their hardness and other Homes, which determine with which approaches and how simply they may be cut and polished with good quality.
In 2017, we developed the earth’s biggest Ti∶sapphire crystal (Φ235 mm), which supported The ten 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 good-state lasers. With the rise in pulse energy, peak energy, and repetition fee of stable-point out lasers, laser crystals will establish towards bigger dimensions, higher crystal high quality, and controllable important efficiency.
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人造红宝石激光晶体是首次实现激光输出的材料。可用焰熔法、提拉法或助熔剂法生产单晶。用提拉法容易获得大尺寸优质晶体。