5 Simple Techniques For Nonlinear Crystal
5 Simple Techniques For Nonlinear Crystal
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Laser modeling and simulation can be used to reliably decide the ideal crystal dimensions, doping density and possibly values of additional parameters.
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。
The host medium influences strongly the wavelength, bandwidth and transition cross-sections of pump and laser transitions and also the upper-point out 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 possible doping concentration can depend strongly within the host material and its fabrication method.
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Furthermore, some overall flexibility is misplaced in experiments if a single can't try out absorbers with unique thickness or doping focus, by way of example, with no exchanging the laser crystal by itself.
These ions help the crystal to amplify light-weight for the laser wavelength by using stimulated emission, when Vitality is equipped for the crystal by way of absorption of pump mild (�?optical pumping
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It could be oriented for in close proximity to perpendicular incidence with the laser beam, or at Brewster's angle. It could be fastened in a few strong mount which also functions for a warmth sink. More substantial crystals are generally utilized for facet pumping e.g. with superior-ability diode bars.
The commonest laser-active rare earth ions and host media together with some usual emission wavelengths read more are revealed in the subsequent table:
A handful of laser crystal materials have already been shown wherever some saturable absorber content is integrated for passive Q switching of the laser.
For various explanations, composite crystals have become preferred. These Possess a spatially various chemical composition and might be manufactured with Exclusive designs.
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 idea, one doesn't need yet another saturable absorber crystal, in order that 1 may well make far more compact Q-switched laser setups with reduced internal parasitic losses. Having said that, unwelcome Uncomfortable side effects may manifest, like acquiring undesired valence states of your concerned ions or energy transfers.
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Laser crystals are optical crystals �?ordinarily solitary crystals (monocrystalline optical materials) �?that happen to be used as get media for sound-state lasers. In most cases, They may be doped with both trivalent rare earth ions or transition 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。