The Fact About Laser Crystal That No One Is Suggesting
The Fact About Laser Crystal That No One Is Suggesting
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Laser crystals are optical crystals �?typically solitary crystals (monocrystalline optical resources) �?that are employed as achieve media for sound-state lasers. Usually, They're doped with possibly trivalent exceptional earth ions or transition metallic ions.
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。
Which geometry, dopant and doping concentration of your attain medium are most advantageous depend upon various factors. The obtainable pump source (sort of laser diode or lamp) along with the envisaged pumping arrangement are essential aspects, but the material alone also has some impact. By way of example, titanium–sapphire lasers have to be pumped with superior intensities, for which the form of the transversely cooled rod, operated with somewhat small pump and laser beam diameter, is a lot 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。
A significant surface area high-quality is needless to say vital. Specs of area flatness are frequently much better than . This helps to prevent both equally scattering losses and wavefront distortions which click here often can degrade the laser's beam top quality. In addition, scratch and dig requirements
亚稳态寿命也起着重要作用。较长的寿命允许更多的储能和实现粒子数反转的更高潜力，这对激光动作至关重要。
A number of laser crystal materials are actually demonstrated where some saturable absorber substance is incorporated for passive Q switching of the laser.
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It is apparent that different apps bring on quite distinct needs on laser acquire media. For this reason, a wide selection of different crystals are used, and earning the appropriate decision is essential for developing lasers with ideal 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 a variety of explanations, composite crystals are becoming popular. These Possess a spatially varying chemical composition and can be manufactured with Exclusive styles.
With That idea, one particular won't will need an extra saturable absorber crystal, making sure that one could make more compact Q-switched laser setups with lower interior parasitic losses. On the other hand, unwelcome Negative effects may take place, including getting unwanted valence states with the associated ions or Strength transfers.
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。