Detailed Notes on Laser Crystal
Detailed Notes on Laser Crystal
Blog Article
The commonest laser-active unusual earth ions and host media together with some standard emission wavelengths are proven in the next table:
激光晶体的极化性能可能会影响输出激光束的质量和特性。有些激光晶体产生线性偏振光，这对某些应用可能有益。
为了使激光器有效运作，需要有效管理运行过程中产生的热量。具有良好热导率的激光晶体可以更有效地散热，防止热透镜效应或断裂。
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。
Which geometry, dopant and doping focus with the obtain medium are most beneficial depend upon quite a few variables. The available pump resource (kind of laser diode or lamp) as well as the envisaged pumping arrangement are important components, but the fabric by itself also has some affect. One example is, titanium–sapphire lasers have to be pumped with significant intensities, for which the shape of a transversely cooled rod, operated with fairly small pump and laser beam diameter, is more ideal than e.
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。
A large area quality is naturally essential. Requirements of surface flatness in many cases are better than . This allows in order to avoid both scattering losses and wavefront distortions which could degrade the laser's beam quality. Also, scratch and dig specifications
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。
Laser modeling and simulation may be used to reliably decide the the best possible crystal dimensions, doping density and possibly values of supplemental parameters.
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。
People surfaces which can be passed because of the laser beam are Commonly either oriented at Brewster's angle or have an anti-reflection coating.
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In 2017, we produced the entire world’s greatest Ti∶sapphire crystal (Φ235 mm), which supported the 10 PW laser output of Shanghai Superintense Ultrafast Laser Facility. The development of Yb and Tm doped GdScO3 laser crystals with extremely wide emission spectra drives the event of laser diode pumped ultrafast good-point out lasers. With the rise in pulse Vitality, peak electrical power, and repetition price of solid-point out lasers, laser crystals will acquire in direction of greater sizes, bigger crystal excellent, and controllable essential efficiency.
With that concept, a person won't require an additional saturable absorber crystal, to make sure that just one could make more compact Q-switched laser setups with decreased inner Laser Crystal parasitic losses. However, undesired Unwanted effects might also manifest, for example obtaining undesired valence states of the included ions or Power transfers.
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。