Laser Crystal Secrets

Laser Crystal Secrets

Blog Article

The most typical laser-active exceptional earth ions and host media together with some typical emission wavelengths are demonstrated in the next table:

In this article you can post inquiries and remarks. As far as they get accepted with the writer, they can look earlier mentioned this paragraph together with the author’s reply. The writer will decide on acceptance determined by certain conditions. Primarily, The problem should be of adequately broad curiosity.

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 concentration of the obtain medium are most useful rely on many factors. The obtainable pump supply (type of laser diode or lamp) as well as the envisaged pumping arrangement are crucial factors, but the material by itself also has some influence. For instance, titanium–sapphire lasers need to be pumped with significant intensities, for which the form of a transversely cooled rod, operated with somewhat compact pump and laser beam diameter, is a lot more appropriate than e.

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。

活性离子在激光晶体内发生的能量跃迁对激光操作至关重要。大多数激光操作都是通过四能级系统原理进行的，确保连续操作并防止浪费的非辐射衰变。

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。

The host crystal is much more than simply a means to fix the laser-Lively ions at certain positions in space. Many Houses on the host material are very important:

量子效率是发射光子数量与吸收光子数量的比率。高量子效率表明更大部分吸收能量被转化为激光光束，有助于提高激光的整体效率。

Individuals surfaces which are passed through the laser beam are Commonly possibly oriented at Brewster's angle or have an anti-reflection coating.

Distinctive crystalline products are certainly unique concerning their hardness together with other Houses, which figure out with which strategies And the way conveniently they can be Lower and polished with high quality.

The medium should have a substantial transparency (reduced absorption and scattering) in the wavelength locations of pump and laser radiation, and fantastic optical homogeneity. To some extent, this relies on the quality of the fabric, based on details with the fabrication course of action.

With that concept, one will not need to have a further saturable absorber crystal, in order that a single may well make extra compact Q-switched laser setups with reduced internal parasitic losses. However, undesirable Unwanted effects can also click here happen, for instance obtaining unwanted valence states of your 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。