In this particular paper, the new lapping slurry and sprucing slurry are launched. And also the deliquescence diploma of CLBO is fallen to most affordable. A different Performing technologies is usually adopted. Right after rough sharpening, the concentration of extremely-precision polishing slurry is amplified appropriately. So does the extremely-precision polishing pace, and the wiping speed is quicker compared to the deliquescence pace. The CLBO crystal floor roughness can realize 1nm and keep the surface high quality effectively. Accessibility by way of your institution
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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。
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Due to thermal lens outcome within the sound-condition lasers, If your heating administration is inadequate, It's not necessarily quick to acquire the good-point out laser which has a high power plus a large beam high-quality at the same time. A short while ago, with the event of The skinny disk laser and solitary-crystal fiber (SCF) laser, a large-energy laser at the fundamental wavelength (one μm) were recognized with an excellent beam top quality even with a TEM00 manner beam [four,24], which would be great candidates for the fundamental of your DUV laser era. Another prospect for the basic may be the substantial-energy fiber laser which could be obtained by coherent beam blend with M2 worth lower than one.
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During the scientific and industrial programs, the beam high-quality of the DUV laser is likewise an important parameter. Particularly, the beam top quality of the DUV laser dramatically has an effect on the laser machining outcomes. The beam excellent from the DUV laser is decided by that of the basic laser and the crystal for the frequency conversion. Recently, a large-ability DUV laser (>10 W) at 258 nm was claimed using a beam quality of M2 < 1.five, which was created by FHG of the Yb:YAG laser at 1030 nm utilizing the CLBO crystal [13]. This laser would bring on a far better laser machining consequence when compared to the preceding DUV lasers with bigger M2.
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The conversion effectiveness from essential NIR to DUV is from 5% to 36% in accordance with the documented brings about Table one. Increasing the conversion efficiency will reduce the load on the design and setup of the basic laser amplifier and also the electric powered energy usage. An excellent beam good quality of the basic laser can even add into the expanding of the conversion efficiency as well as the appropriate power depth of your NIR and environmentally friendly laser during the SHG and FHG system, respectively. The best conversion efficiencies from NIR to environmentally friendly and inexperienced to DUV laser by utilization of CLBO crystal are 70% and all around 50%, respectively [12], which corresponds to the conversion performance of 35% from elementary to DUV.
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