Not known Facts About Laser Crystal
Not known Facts About Laser Crystal
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The most common laser-active unusual earth ions and host media together with some normal emission wavelengths are revealed in the subsequent 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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激光晶体中活性离子的作用是什么？ 活性离子在激光晶体中负责通过受激发射产生激光光线。
Which geometry, dopant and doping concentration in the obtain medium are most beneficial depend on several elements. The obtainable pump source (kind of laser diode or lamp) as well as the envisaged pumping arrangement are essential factors, but the fabric alone also has some affect. As an example, titanium–sapphire lasers need to be pumped with superior intensities, for which the form of a transversely cooled rod, operated with rather modest pump and laser beam diameter, is more ideal than e.
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 most attainable doping focus can depend strongly to the host content and its fabrication technique.
The host crystal is much more than just a way to repair the laser-Lively ions at certain positions in Area. Quite a few Attributes 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 because of the laser beam are Generally either 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 components laser crystal crystal expansion optical functionality uncommon earth ions transition group ions
The medium should have a high transparency (small absorption and scattering) during the wavelength areas of pump and laser radiation, and great optical homogeneity. To click here some extent, this depends on the caliber of the material, determined by details with the fabrication method.
It might be oriented for close to perpendicular incidence in the laser beam, or at Brewster's angle. It may be mounted in a few reliable mount which also acts like a heat sink. Bigger crystals are often used for facet pumping e.g. with significant-electric power diode bars.
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。