The smart Trick of CLBO Crystal That No One is Discussing
The smart Trick of CLBO Crystal That No One is Discussing
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In this particular paper, The brand new lapping slurry and sharpening slurry are launched. And the deliquescence degree of CLBO is fallen to least expensive. A whole new Doing the job technological innovation is also adopted. Right after rough sharpening, the focus of extremely-precision sprucing slurry is increased properly. So does the extremely-precision sprucing pace, plus the wiping speed is faster in comparison to the deliquescence pace. The CLBO crystal floor roughness can realize 1nm and continue to keep the area high quality effectively. Access as a result of your establishment
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We summarized The present growth status in the higher-energy DUV laser both within the wavelength of FHG in the one-μm laser and at 193 nm. The latest development on the solid-condition/fiber laser, in addition to the nonlinear optical crystals, prompts not just the normal energy and also the beam quality (coherence) in the DUV lasers to an unprecedented stage.
全固态紫外激光器以其体积小、寿命长、效率高、光束质量好、调谐范围宽、谱线窄等优点，广泛应用于机械探伤、光刻、微加工和医学等领域，等，利用大功率近红外相干光源作为基于非线性调谐技术的基频源，通过多级变频产生紫外相干辐射被认为是发展紫外相干光源的重要途径。紫外相干光源的关键问题是研制紫外波段的非线性光学变频晶体。非线性光学晶体是实现频率变换的条件之一，因此对非线性光学晶体的生长、尺寸、损伤电阻、转换效率和允许的参数范围提出了越来越高的要求。
Alternatively, the beam quality of the greater energy DUV laser would develop into worse resulting from a lot more critical thermal and nonlinear consequences. Therefore, the frequency conversion processes need to be cautiously intended to mitigate the aforementioned outcomes. So, a substantial-ability DUV laser at the FHG of one μm with a good beam high quality might be attained and can be effective for getting the shorter wavelength DUV lasers such as 193 nm by SFG.
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Cesium Lithium Borate (CsLiB6O10 or CLBO) is the most effective non-linear crystal which generates ultraviolet harmonics on the Nd:YAG basic laser wavelength. In an effort to boost the harm threshold, reduced CLBO floor roughness, by ultra-precision machining, is necessary. Since the CLBO crystal has straightforward hydroscopic response and micro scratches in machining, ultra-specific machining with the CLBO crystal can be a challenging technical challenge.
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The conversion performance from basic NIR to DUV is from 5% to 36% according to the described leads to Desk 1. Raising the conversion efficiency will decrease the burden on the design and set up of the fundamental laser amplifier together with the electric electric power consumption. A great beam good quality of the elemental laser will also contribute on the expanding of the conversion efficiency along with the suitable electricity depth from the NIR and environmentally friendly laser in the SHG and FHG procedure, respectively. The highest conversion efficiencies from NIR to green and green to DUV laser by usage of CLBO crystal are 70% and all-around fifty%, respectively [12], which corresponds for the conversion efficiency of 35% from essential more info to DUV.
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