Laser Crystal Options
Laser Crystal Options
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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。
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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。
A superior surface high quality is needless to say vital. Specs of surface area flatness will often be much better than . This assists in order to avoid equally scattering losses and wavefront distortions that may degrade the laser's beam quality. Additionally, scratch and dig specs
The most feasible doping focus can depend strongly about the host material and its fabrication process.
The host crystal is a lot more than simply a means to fix the laser-Energetic ions at sure positions in Place. Many Qualities on the host substance are crucial:
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。
Those surfaces which can be handed via the laser beam are Ordinarily both oriented at Brewster's angle or have an anti-reflection coating.
材料 激光晶体 晶体生长 光学性能 稀土离子 过渡族离子 products laser crystal crystal progress optical performance uncommon earth ions changeover group ions
In 2017, we made the planet’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 really large emission spectra drives the development of laser diode pumped ultrafast strong-condition lasers. With the increase in pulse Electrical power, peak power, and repetition charge of reliable-condition lasers, laser crystals will acquire to larger sizes, higher crystal good quality, and controllable critical performance.
It could be oriented for near perpendicular incidence from the laser beam, or at Brewster's angle. It can be fixed in some solid mount which also functions for a warmth sink. More substantial crystals are frequently utilized for side pumping e.g. with high-ability diode bars.
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