What Does Laser Crystal Mean?
Laser modeling and simulation can be used to reliably figure out the optimum crystal dimensions, doping density And perhaps values of further 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 crystal is far more than just a way to fix the laser-active ions at sure positions in Place. A number of Houses on the host material are essential:
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-3-amount laser achieve media or simply a few-level acquire media, one frequently needs to limit the length to a worth which is as well shorter for productive pump absorption, as reabsorption consequences would or else spoil the general performance. For aspect pumping, added criteria appear into Participate in; In addition to productive pump absorption, it can be crucial to obtain an acceptable spatial form of the obtain profile.
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A large damage threshold in terms of pulse fluence or peak depth may be significant for prime-energy amplifiers.
These ions empower the crystal to amplify gentle in the laser wavelength by means of stimulated emission, when Strength is equipped to the crystal by using absorption of pump light-weight (�?optical pumping
Which geometry, dopant and doping focus in the get medium are most beneficial rely on many aspects. The available pump source (variety of laser diode or lamp) as well as envisaged pumping arrangement are crucial components, but the fabric alone also has some affect. One example is, titanium–sapphire lasers have to be pumped with superior intensities, for which the shape of the transversely cooled rod, operated with reasonably tiny pump and laser beam diameter, is much more ideal than e.
It might be oriented for in the vicinity of perpendicular incidence from the laser beam, or at Brewster's angle. It could be fixed in certain reliable mount which also acts for a warmth sink. More substantial crystals are usually utilized for aspect pumping e.g. with high-electrical power diode bars.
The most typical laser-Energetic unusual earth ions and host media together with some common emission wavelengths are shown in the subsequent desk:
A few laser crystal resources are actually demonstrated click here in which some saturable absorber substance is included for passive Q switching of a laser.
Naturally, it's very appealing that a presented crystal good quality is developed persistently, Despite the fact that diverse laser patterns can have another sensitivity to substance parameters.
There's a wide range of crystalline media, which may be grouped according 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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Laser crystals are optical crystals �?normally solitary crystals (monocrystalline optical elements) �?which are utilized as obtain media for good-condition lasers. Generally, These are doped with possibly trivalent exceptional 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。