Laser Crystal - An Overview

Laser Crystal - An Overview

Blog Article

The most common laser-active uncommon earth ions and host media together with some normal emission wavelengths are demonstrated 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。

Laser crystals are optical crystals �?normally one crystals (monocrystalline optical components) �?which are utilised as gain media for sound-point out lasers. Generally, These are doped with possibly trivalent uncommon earth ions or changeover metallic ions.

In addition, some versatility is missing in experiments if 1 are not able to Check out absorbers with various thickness or doping focus, by way of example, devoid of exchanging the laser crystal alone.

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：

晶体的光学质量对激光器的有效运行至关重要。晶体中的缺陷或杂质可能导致光散射、吸收甚至损坏晶体。高光学质量确保了稳定和高质量的激光束。

Of course, it is very attractive that a supplied crystal high quality is made constantly, Even though different laser models may have a different sensitivity to substance parameters.

The most achievable doping focus can depend strongly to the host materials and its fabrication system.

The host crystal is considerably more than simply a way to repair the laser-Lively ions at specific positions in Room. A number of Homes in the host materials are crucial:

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。

Those people surfaces which happen to be handed through the laser beam are Usually either oriented at Brewster's angle or have an anti-reflection coating.

Diverse crystalline supplies are very unique regarding website their hardness and various Homes, which determine with which approaches and how very easily they may be Reduce and polished with high quality.

The medium must have a large transparency (low absorption and scattering) during the wavelength locations of pump and laser radiation, and very good optical homogeneity. To some extent, this is determined by the standard of the material, determined by information of the fabrication course of action.

It could be oriented for in the vicinity of perpendicular incidence of the laser beam, or at Brewster's angle. It can be fixed in certain stable mount which also functions for a warmth sink. More substantial crystals usually are useful for aspect pumping e.g. with substantial-electricity 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。