Not known Details About Laser Crystal
Not known Details About Laser Crystal
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The most common laser-Energetic scarce earth ions and host media along with some regular emission wavelengths are demonstrated in the next table:
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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 get medium are most beneficial depend upon numerous aspects. The obtainable pump resource (variety of laser diode or lamp) as well as the envisaged pumping arrangement are important factors, but the fabric by itself also has some influence. Such as, titanium–sapphire lasers should be pumped with large intensities, for which the shape of a transversely cooled rod, operated with relatively modest pump and laser beam diameter, is more correct than e.
GWU delivers all widespread laser crystals (Nd:YVO4, Nd:YAG, Yb:YAG and many others.) that has a wide variety of specifications. Besides the well-founded elements, impressive crystals with fantastic Qualities like Yb:CALGO can open new horizons for demanding laser purposes. It does not matter irrespective of whether specific pieces for R & D uses are necessary or Price tag-economical figures in compact, medium or massive batches with in-time delivery to the output line are necessary: GWU’s focused services helps you to locate the greatest Main factors for the application.
A significant area high quality is certainly essential. Specs of surface area flatness in many cases are much more info better than . This can help to stay away from both scattering losses and wavefront distortions which may degrade the laser's beam excellent. On top of that, scratch and dig requirements
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。
激光晶体的效率在很大程度上依赖于某些属性，这些属性不仅限于其基本组成。这些特性决定了产生的激光光束的质量和随后的应用。
热膨胀和收缩系数对确定激光晶体的热透镜特性至关重要。最小化热透镜效应对于在广泛的操作温度范围内保持光束质量至关重要。
For quasi-3-amount laser get media and even a few-degree attain media, one particular frequently needs to Restrict the duration to a value which happens to be also small for effective pump absorption, as reabsorption outcomes would or else spoil the effectiveness. For side pumping, further things to consider come into Perform; Moreover economical pump absorption, it is vital to get an appropriate spatial form with the get profile.
主体材料中活性离子掺杂物的数量是关键因素。它影响了激光的效率和性能。过低的浓度可能导致低输出，过高的浓度可能导致消光效应，降低晶体的效率。
The medium ought to have a substantial transparency (reduced absorption and scattering) in the wavelength areas of pump and laser radiation, and good optical homogeneity. To some extent, this will depend on the quality of the fabric, based on specifics of your fabrication method.
With That idea, one particular doesn't require an additional saturable absorber crystal, to ensure that 1 might make more compact Q-switched laser setups with reduce internal parasitic losses. However, undesirable Unwanted effects can also occur, which include acquiring unwelcome valence states on the involved ions or Electricity transfers.
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