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。
Laser crystals are optical crystals �?commonly single crystals (monocrystalline optical elements) �?that happen to be used as achieve media for solid-condition lasers. Most often, They may be doped with both trivalent rare earth ions or transition metal ions.
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 of the gain medium are most beneficial rely upon various components. The accessible pump source (variety of laser diode or lamp) as well as envisaged pumping arrangement are very important variables, but the material alone also has some affect. For instance, titanium–sapphire lasers have to be pumped with significant intensities, for which the form of the transversely cooled rod, operated with rather modest pump and laser beam diameter, is more proper than e.
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。
Naturally, it is very attractive that a supplied crystal good quality is manufactured consistently, Whilst unique more info laser types can have a unique sensitivity to content parameters.
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。
Several laser crystal resources are demonstrated where some saturable absorber materials is integrated for passive Q switching of the 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。
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材料 激光晶体 晶体生长 光学性能 稀土离子 过渡族离子 materials laser crystal crystal progress optical effectiveness rare earth ions transition group ions
The medium ought to have a significant transparency (minimal absorption and scattering) within the wavelength areas of pump and laser radiation, and excellent optical homogeneity. To some extent, this depends upon the caliber of the material, determined by aspects in the fabrication system.
With that concept, a single will not want an additional saturable absorber crystal, to ensure that 1 may possibly make far more compact Q-switched laser setups with reduced internal parasitic losses. Nevertheless, unwelcome Unintended effects may take place, such as acquiring unwanted valence states with the involved ions or Electricity transfers.
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