What Does Laser Crystal Mean?
What Does Laser Crystal Mean?
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Diverse crystalline supplies are quite diverse relating to their hardness along with other Attributes, which decide with which solutions And the way quickly they may be Lower and polished with high quality.
The medium ought to have a higher transparency (lower absorption and scattering) in the wavelength regions of pump and laser radiation, and fantastic optical homogeneity. To some extent, this depends on the quality of the material, based on aspects of the fabrication method.
The host medium influences strongly the wavelength, bandwidth and transition cross-sections of pump and laser transitions as well as the upper-state lifetime.
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。
For quasi-three-amount laser get media as well as 3-level get media, just one typically must Restrict the size to a value which happens to be far too quick for efficient pump absorption, as reabsorption results would usually spoil the effectiveness. For aspect pumping, extra considerations appear into Perform; Other than productive pump absorption, it is vital to acquire an appropriate spatial shape with the obtain profile.
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A large damage threshold with regard to pulse fluence or peak intensity is often crucial for top-Power amplifiers.
These ions help the crystal to amplify mild within the laser wavelength by way of stimulated emission, when Electrical power is supplied to your crystal via absorption of pump gentle (�?optical pumping
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These tables contain only the most common host crystals; many Other people exist, which can be fewer frequently utilised.
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Several laser crystal supplies have been shown exactly where some saturable absorber product is integrated for passive Q switching of the laser.
For different factors, composite crystals have gotten well-liked. These Have a very spatially varying chemical composition and might be built with Unique shapes.
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。
With that concept, one particular isn't going to want a further saturable absorber crystal, making sure that 1 could make more compact Q-switched laser setups with decreased inner parasitic losses. However, unwelcome Unwanted effects may take place, such as getting undesirable valence states on the included ions or Strength transfers.
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Laser crystals are optical crystals �?typically one crystals (monocrystalline optical elements) �?which happen to be made use of Laser Crystal as gain media for good-condition lasers. Usually, They may be doped with either trivalent rare earth ions or changeover steel 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。