New Step by Step Map For Laser Crystal
New Step by Step Map For Laser Crystal
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The most typical laser-Energetic rare earth ions and host media together with some standard emission wavelengths are demonstrated in the next desk:
These ions allow the crystal to amplify light with the laser wavelength by way of stimulated emission, when Power is provided to your crystal by means of absorption of pump light-weight (�?optical pumping
Laser crystals are optical crystals �?typically single crystals (monocrystalline optical materials) �?that happen to be used as achieve media for stable-condition lasers. Most often, They're doped with either trivalent unusual earth ions or transition metal 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。
The host medium influences strongly the wavelength, bandwidth and transition cross-sections of pump and laser transitions in addition to the upper-point out lifetime.
GWU gives all widespread laser crystals (Nd:YVO4, Nd:YAG, Yb:YAG and so forth.) using a broad selection of specs. Apart from the effectively-set up supplies, progressive crystals with excellent Houses like Yb:CALGO can open new horizons for demanding laser programs. Regardless of regardless of whether personal pieces for R & D applications are expected or Price-economical figures in tiny, medium or big batches with in-time supply for that creation line are required: GWU’s focused provider helps to locate the greatest core parts for the software.
激光晶体的损伤阈值与其能承受的最大光强有关，而不会遭受物理或结构损伤。高损伤阈值对于确保高功率激光应用的耐久性和长寿命至关重要。
亚稳态寿命也起着重要作用。较长的寿命允许更多的储能和实现粒子数反转的更高潜力，这对激光动作至关重要。
The host crystal is a lot more than simply a means to repair the laser-Lively ions at click here specified positions in space. Quite a few properties on the host material are very important:
激光晶体的核心由固态晶体材料组成，通常掺杂了某些能够通过受激发射产生光放大的离子。这些离子的性质对激光晶体的性能起决定作用。
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The medium ought to have a superior transparency (reduced absorption and scattering) within the wavelength areas of pump and laser radiation, and excellent optical homogeneity. To some extent, this is dependent upon the standard of the fabric, based on information in the fabrication method.
It might be oriented for around perpendicular incidence with the laser beam, or at Brewster's angle. It might be fixed in some sound mount which also acts like a heat sink. More substantial crystals usually are useful for facet pumping e.g. with superior-ability diode bars.
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。