What Does Laser Crystal Mean?
What Does Laser Crystal Mean?
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Diverse crystalline resources are really distinctive concerning their hardness and other Homes, which establish with which strategies And the way simply they may be Slice and polished with high quality.
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 a lot more than simply a method to repair the laser-active ions at sure positions in Area. Numerous Attributes of the host substance are important:
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-a few-level laser gain media and even three-amount obtain media, a person frequently should limit the size to a price that's as well limited for successful pump absorption, as reabsorption consequences would otherwise spoil the general performance. For aspect pumping, more criteria appear into Perform; Other than efficient pump absorption, it is vital to get an appropriate spatial shape of your obtain profile.
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In addition, some flexibility is dropped in experiments if one particular are unable to try out absorbers with diverse thickness or doping concentration, for example, devoid of exchanging the laser crystal by itself.
These ions allow the crystal to amplify mild with the laser wavelength by means of stimulated emission, when Power is provided towards the crystal through absorption of pump light-weight (�?optical pumping
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These tables have only the most typical host crystals; numerous Other individuals exist, which can be a lot less routinely used.
The most common laser-active exceptional earth ions and host media together with some usual emission wavelengths are revealed in the subsequent desk:
Those surfaces which can be handed through the laser beam are Commonly both oriented at Brewster's angle or have an anti-reflection coating.
For several reasons, composite crystals have gotten well-liked. These have a spatially different chemical composition and may be produced 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, a person will not need to have yet another saturable absorber crystal, so that one may perhaps make here extra compact Q-switched laser setups with decreased internal parasitic losses. However, undesired Unwanted side effects may happen, which include obtaining undesired valence states from the associated ions or Electrical power transfers.
GWU presents all widespread laser crystals (Nd:YVO4, Nd:YAG, Yb:YAG etcetera.) that has a broad selection of specifications. In addition to the well-founded elements, modern crystals with excellent Attributes like Yb:CALGO can open up new horizons for demanding laser programs. It doesn't matter whether particular person items for R & D applications are needed or Expense-economical quantities in tiny, medium or big batches with in-time shipping with the generation line are essential: GWU’s committed service helps to find the very best core components to your application.
It is clear that unique applications bring about incredibly diverse necessities on laser attain media. Because of this, a wide array of different crystals are utilized, and generating the right alternative is essential for setting up lasers with the best possible overall performance.
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。