Laser Crystal No Further a Mystery
Laser Crystal No Further a Mystery
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The most common laser-active uncommon earth ions and host media along with some common emission wavelengths are demonstrated in the subsequent desk:
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Furthermore, some adaptability is misplaced in experiments if one are not able to Check out absorbers with various thickness or doping concentration, by way of example, with out exchanging the laser crystal itself.
Which geometry, dopant and doping concentration of the get medium are most beneficial rely upon various things. The obtainable pump source (kind of laser diode or lamp) along with the envisaged pumping arrangement are crucial aspects, but the fabric by itself also has some impact. As an example, titanium–sapphire lasers have to be pumped with significant intensities, for which the shape of a transversely cooled rod, operated with rather modest pump and laser beam diameter, is more correct 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。
A high surface area high quality is obviously crucial. Specifications of floor flatness are frequently better than . This can help to prevent each scattering losses and wavefront distortions which can degrade the laser's beam good quality. In addition, scratch and dig requirements
探索激光晶体的领域，可以让我们看到科学和技术相结合的奇迹，为我们带来了令人难以置信的进步。这些激光晶体，每一种都在组成和特性上独具匠心，是推动现代世界众多应用的动力。
A handful of laser crystal supplies happen to be demonstrated where some saturable absorber material is included for passive Q switching of a laser.
量子效率是发射光子数量与吸收光子数量的比率。高量子效率表明更大部分吸收能量被转化为激光光束，有助于提高激光的整体效率。
It is obvious that distinct applications bring about extremely distinct demands on laser get media. Due to this, a broad array of various crystals are utilized, and generating the proper preference is more info important for constructing lasers with optimum efficiency.
主体材料中活性离子掺杂物的数量是关键因素。它影响了激光的效率和性能。过低的浓度可能导致低输出，过高的浓度可能导致消光效应，降低晶体的效率。
For different reasons, composite crystals are becoming popular. These Possess a spatially varying chemical composition and may be created with Specific designs.
With That idea, just one won't have to have an extra saturable absorber crystal, making sure that just one may possibly make more compact Q-switched laser setups with decrease internal parasitic losses. Having said that, undesired Uncomfortable side effects could also happen, for instance acquiring unwanted valence states on the associated ions or Electricity transfers.
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。