5 Simple Techniques For Laser Crystal
5 Simple Techniques For Laser Crystal
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Laser modeling and simulation can be utilized to reliably identify the the best possible crystal dimensions, doping density And maybe values of added parameters.
The medium must have a superior transparency (minimal absorption and scattering) from the wavelength regions of pump and laser radiation, and great optical homogeneity. To some extent, this will depend on the quality of the material, based on aspects of the fabrication approach.
The host medium influences strongly the wavelength, bandwidth and transition cross-sections of pump and laser transitions and likewise the higher-condition 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。
The utmost doable doping concentration can rely strongly on the host product and its fabrication process.
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Additionally, some flexibility is shed in experiments if a person simply cannot try out absorbers with distinctive thickness or doping concentration, for example, devoid of exchanging the laser crystal by itself.
These ions allow the crystal to amplify light at the laser wavelength via stimulated emission, when Power is equipped to the crystal by way of absorption of pump light-weight (�?optical pumping
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These tables include only the most common host crystals; numerous Other people exist, that happen to be significantly less regularly used.
The most common laser-Energetic exceptional earth ions and host media along with some typical emission wavelengths are shown in the following table:
A few laser crystal supplies have already been demonstrated where some saturable absorber product is integrated for passive Q switching of a laser.
For many good reasons, composite crystals have gotten common. These Have a very spatially various chemical composition and might be designed with Specific shapes.
There is a wide array of crystalline media, that may be grouped according to special atomic constituents and crystalline structures. Some critical teams of crystals are:
With that concept, a person would not require an additional saturable absorber crystal, to ensure that one may possibly make additional compact Q-switched laser setups with reduce inner parasitic losses. Having said that, undesired Uncomfortable side effects could also take place, for example getting unwanted valence states from the concerned get more info ions or Vitality transfers.
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Laser crystals are optical crystals �?usually solitary crystals (monocrystalline optical materials) �?that happen to be used as obtain media for stable-state lasers. Normally, They are really doped with either trivalent unusual earth ions or changeover 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。