An Unbiased View of Nonlinear Crystal
An Unbiased View of Nonlinear Crystal
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Laser modeling and simulation can be employed to reliably ascertain the the best possible crystal dimensions, doping density And maybe values of supplemental 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 medium influences strongly the wavelength, bandwidth and changeover cross-sections of pump and laser transitions and in addition the higher-state life time.
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The maximum doable doping concentration can depend strongly to the host materials and its fabrication process.
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Also, some overall flexibility is dropped in experiments if a single can not try out absorbers with unique thickness or doping concentration, for example, without the need of exchanging the laser crystal by itself.
作为工业上使用较多的都是高掺钇铝石榴石，也就是说掺入不同的元素来达到不同的效果；作为工业激光，关注以下性能：
Which geometry, dopant and doping concentration from the get medium are most useful rely on various components. The available pump source (form of laser diode or lamp) as well as envisaged pumping arrangement are crucial factors, but the material alone also has some impact. For instance, titanium–sapphire lasers need to be pumped with large intensities, for which the form of a transversely cooled rod, operated with fairly small pump and laser beam diameter, is more acceptable than e.
It may be oriented for in close proximity to perpendicular incidence with the laser beam, or at Brewster's angle. It could be mounted in some solid mount which also functions like a heat sink. Larger sized crystals tend to be useful for side pumping e.g. with high-ability diode bars.
The most common laser-Energetic scarce earth ions and host media together with some here normal emission wavelengths are shown in the next desk:
A couple of laser crystal supplies happen to be shown the place some saturable absorber materials is included for passive Q switching of a laser.
Of course, it is rather desirable that a provided crystal high-quality is created continuously, Even though diverse laser designs can have a distinct sensitivity to substance parameters.
There's an array of crystalline media, which may be grouped in accordance to special atomic constituents and crystalline buildings. Some critical teams of crystals are:
蓝宝�?柱面�?球罩 偏振�?棱镜 红外光学元件 反射�?光学窗口 非球面镜 波片 分光�?制造能力
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It is apparent that unique programs lead to pretty distinctive demands on laser attain media. For that reason, a wide range of different crystals are applied, and making the best preference is essential for setting up lasers with ideal 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。