What Does Laser Crystal Mean?
What Does Laser Crystal Mean?
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Laser modeling and simulation can be used to reliably identify the optimum crystal Proportions, doping density And perhaps values of more 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 crystal is considerably more than just a method to fix the laser-Lively ions at particular positions in space. A number of Homes on the host materials are crucial:
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 probable doping focus can count strongly on the host content and its fabrication strategy.
g. a skinny disk. As A further instance, Q-switched lasers get to a higher populace density inside the upper laser degree and are as a result more delicate to quenching consequences and Strength transfer procedures; for that reason, a lessen doping density is commonly suitable for these equipment. For high-electric power lasers, decreased doping densities are sometimes accustomed to limit the density of warmth generation, Even though slender-disk lasers operate best with highly doped crystals. Numerous laser solutions don't reach the entire overall performance opportunity simply because these types of specifics have not been properly labored out.
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On top of that, some overall flexibility is lost in experiments if a person are unable to Check out absorbers with distinctive thickness or doping focus, one example is, devoid of exchanging the laser crystal alone.
These ions help the crystal to amplify light-weight on the laser wavelength by using stimulated emission, when Electricity is provided to the crystal by using absorption of pump light (�?optical pumping
Which more info geometry, dopant and doping focus of your achieve medium are most useful rely upon numerous elements. The obtainable pump resource (form of laser diode or lamp) plus the envisaged pumping arrangement are very important things, but the fabric itself also has some influence. For instance, titanium–sapphire lasers need to be pumped with high intensities, for which the form of a transversely cooled rod, operated with somewhat small pump and laser beam diameter, is a lot more acceptable than e.
These tables contain only the most typical host crystals; many Other people exist, that are a lot less routinely utilized.
The most typical laser-active uncommon earth ions and host media together with some common emission wavelengths are revealed in the subsequent desk:
A few laser crystal materials have been shown exactly where some saturable absorber content is included for passive Q switching of the laser.
For many reasons, composite crystals have become well known. These have a spatially different chemical composition and will be made with Unique styles.
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 particular doesn't require an extra saturable absorber crystal, to ensure just one may possibly make far more compact Q-switched laser setups with lessen internal parasitic losses. Nevertheless, unwelcome Negative effects may occur, including acquiring undesired valence states in the concerned ions or Vitality transfers.
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Laser crystals are optical crystals �?commonly one crystals (monocrystalline optical materials) �?which can be applied as attain media for good-point out lasers. Typically, They can be doped with either 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。