The Laser Crystal Diaries
The Laser Crystal Diaries
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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 focus with the get medium are most beneficial rely upon various components. The readily available pump supply (sort of laser diode or lamp) as well as the envisaged pumping arrangement are important factors, but the material alone also has some affect. For instance, titanium–sapphire lasers ought to be pumped with higher intensities, for which the shape of the transversely cooled rod, operated with somewhat modest pump and laser beam diameter, is more ideal than e.
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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。
探索激光晶体的领域，可以让我们看到科学和技术相结合的奇迹，为我们带来了令人难以置信的进步。这些激光晶体，每一种都在组成和特性上独具匠心，是推动现代世界众多应用的动力。
Laser modeling and simulation can be employed to reliably decide the the best possible crystal dimensions, doping density And perhaps values of added parameters.
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。
For quasi-three-stage laser achieve media and even a few-stage acquire media, a person generally has to Restrict the length to a worth which can be much too limited for efficient pump absorption, as reabsorption outcomes would otherwise spoil the effectiveness. For side pumping, added things to consider arrive into Enjoy; besides productive pump absorption, it can be crucial to obtain a suitable spatial shape on the get profile.
材料 激光晶体 晶体生长 光学性能 稀土离子 过渡族离子 elements laser crystal crystal growth optical functionality scarce earth ions changeover team ions
In 2017, we created the earth’s biggest Ti∶sapphire crystal (Φ235 mm), which supported The ten PW laser output of Shanghai Superintense Ultrafast Laser Facility. The event of Yb and Tm doped GdScO3 laser crystals with very huge emission spectra drives the event of laser diode pumped ultrafast reliable-point out lasers. With the increase in pulse Electricity, peak ability, and repetition rate of sound-condition lasers, laser crystals will acquire to bigger sizes, larger crystal good quality, and controllable critical general performance.
It might be oriented for in close proximity to perpendicular incidence of your laser beam, or at Brewster's angle. It can be fixed in some stable mount which also functions being a warmth sink. More substantial crystals usually are employed for aspect pumping read more e.g. with large-electrical power diode bars.
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。