About Laser Crystal
About Laser Crystal
Blog Article
The commonest laser-active scarce earth ions and host media together with some normal emission wavelengths are demonstrated in the next table:
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激光晶体是固态激光器的核心。它们是光放大发生的媒介，产生激光束。在这篇全面指南中，我们深入探讨激光晶体的世界。
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Which geometry, dopant and doping concentration from the obtain medium are most useful rely on a number of elements. The accessible pump source (variety of laser diode or lamp) as well as envisaged pumping arrangement are very important variables, but the material by itself also has some influence. For example, titanium–sapphire lasers must be pumped with large intensities, for which the form of the transversely cooled rod, operated with rather small pump and laser beam diameter, is much more proper 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。
The utmost probable doping concentration can count strongly around the host product and its fabrication approach.
The host crystal is considerably more than simply a means to fix the laser-Lively ions at certain positions in Room. website A number of Qualities with the host material are very important:
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。
It is obvious that distinct programs cause incredibly distinctive specifications on laser obtain media. For that reason, a broad assortment of different crystals are employed, and earning the correct selection is important for developing lasers with ideal functionality.
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。
In 2017, we designed the world’s biggest Ti∶sapphire crystal (Φ235 mm), which supported the 10 PW laser output of Shanghai Superintense Ultrafast Laser Facility. The development of Yb and Tm doped GdScO3 laser crystals with really extensive emission spectra drives the event of laser diode pumped ultrafast sound-state lasers. With the increase in pulse Electricity, peak electricity, and repetition amount of stable-condition lasers, laser crystals will build in direction of larger dimensions, increased crystal good quality, and controllable vital overall performance.
You can find an array of crystalline media, which may be grouped in accordance to special atomic constituents and crystalline constructions. Some essential groups of crystals are:
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。