Considerations To Know About Laser Crystal
Considerations To Know About Laser Crystal
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The most common laser-active unusual earth ions and host media along with some regular emission wavelengths are revealed in the next desk:
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为了使激光器有效运作，需要有效管理运行过程中产生的热量。具有良好热导率的激光晶体可以更有效地散热，防止热透镜效应或断裂。
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。
Certainly, it is vitally attractive that a presented crystal good quality is generated continually, While unique laser types may have a distinct sensitivity to materials parameters.
The most achievable doping focus can rely strongly on the host product and its fabrication strategy.
激光晶体的效率在很大程度上依赖于某些属性，这些属性不仅限于其基本组成。这些特性决定了产生的激光光束的质量和随后的应用。
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。
For quasi-3-level laser attain media or maybe 3-level get media, one particular usually really should limit the duration to a price which happens to be way too brief for successful pump absorption, as reabsorption effects would usually spoil the performance. For aspect pumping, added factors arrive into play; Other than productive pump absorption, it can be crucial to obtain an appropriate spatial condition from the gain profile.
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 growth optical efficiency unusual earth ions transition group ions
The medium should have a significant transparency (minimal absorption and scattering) in the wavelength areas of pump and laser radiation, and great optical homogeneity. To some extent, this relies on the quality of the fabric, based on specifics of your fabrication procedure.
With that concept, one does not have to have a further saturable absorber crystal, to ensure a single may make a lot more compact Q-switched laser setups with lessen inside parasitic losses. However, undesirable Unwanted side effects may additionally come about, such as obtaining unwelcome valence states on the involved ions or Electricity transfers.
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