Little Known Facts About Laser Crystal.
Little Known Facts About Laser Crystal.
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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。
激光晶体是固态激光器的核心。它们是光放大发生的媒介，产生激光束。在这篇全面指南中，我们深入探讨激光晶体的世界。
Moreover, some flexibility is misplaced in experiments if one cannot Check out absorbers with different thickness or doping focus, for example, devoid of exchanging the laser crystal itself.
The host medium influences strongly the wavelength, bandwidth and transition cross-sections of pump and laser transitions and in addition the higher-point out life span.
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A substantial floor quality is needless to say important. Specs of surface area flatness are sometimes a lot better than . This can help to stay away from both scattering losses and wavefront distortions which could degrade the laser's beam excellent. Also, scratch and dig requirements
g. a skinny disk. As An additional illustration, Q-switched lasers reach an increased population density while in the upper laser stage and they are consequently far more delicate to quenching consequences and energy transfer processes; hence, a reduce doping density is usually appropriate for these units. For prime-electricity lasers, decrease doping densities will often be used to limit the density of heat generation, Though slim-disk lasers perform greatest with very doped crystals. website Several laser items don't get to the complete efficiency possible simply because these types of facts haven't been adequately worked out.
The host crystal is a great deal more than just a means to fix the laser-Energetic ions at sure positions in Area. Quite a few Attributes of the host materials are crucial:
激光晶体的核心由固态晶体材料组成，通常掺杂了某些能够通过受激发射产生光放大的离子。这些离子的性质对激光晶体的性能起决定作用。
It is obvious that unique apps lead to really distinct demands on laser achieve media. This is why, a broad assortment of various crystals are utilised, and generating the best selection is essential for developing lasers with ideal efficiency.
材料 激光晶体 晶体生长 光学性能 稀土离子 过渡族离子 resources laser crystal crystal advancement optical overall performance unusual earth ions transition group ions
The medium must have a higher transparency (small absorption and scattering) while in the wavelength regions of pump and laser radiation, and fantastic optical homogeneity. To some extent, this is dependent upon the quality of the material, based on facts of the fabrication approach.
It could be oriented for near perpendicular incidence of the laser beam, or at Brewster's angle. It might be preset in certain stable mount which also acts as being a warmth sink. Greater crystals are generally used for facet pumping e.g. with significant-electricity diode bars.
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。