The smart Trick of CLBO Crystal That Nobody is Discussing
The smart Trick of CLBO Crystal That Nobody is Discussing
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During this paper, the new lapping slurry and sprucing slurry are introduced. Plus the deliquescence diploma of CLBO is fallen to lowest. A whole new Performing technology can be adopted. Soon after rough sharpening, the concentration of ultra-precision polishing slurry is improved appropriately. So does the ultra-precision polishing pace, as well as the wiping speed is quicker as opposed to deliquescence velocity. The CLBO crystal floor roughness can reach 1nm and continue to keep the surface high-quality perfectly. Entry by means of your establishment
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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。
Then again, the beam excellent of the bigger ability DUV laser would turn out to be even worse as a consequence of more severe thermal and nonlinear effects. Therefore, the frequency conversion processes need to be carefully meant to mitigate the aforementioned consequences. So, a high-energy DUV laser on the FHG of 1 μm with a great beam high quality might be obtained and can be beneficial for acquiring the shorter wavelength DUV lasers like 193 nm by SFG.
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In the scientific and industrial programs, the beam high-quality in the DUV laser can be a significant parameter. Particularly, the beam quality from the DUV laser significantly has an effect on the laser machining results. The beam quality of the DUV laser is determined by that of the elemental laser along with the crystal for your frequency conversion. Recently, a high-ability DUV laser (>ten W) at 258 nm was reported having a beam high-quality of M2 < 1.five, which was generated by FHG of the Yb:YAG laser at 1030 nm using the CLBO crystal [thirteen]. This laser would result in a far better laser machining end result in comparison to the former DUV lasers with more substantial M2.
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Cesium Lithium Borate (CsLiB6O10 or CLBO) is the simplest non-linear crystal which generates ultraviolet harmonics with the Nd:YAG essential laser wavelength. So that you can boost the problems threshold, small CLBO area roughness, by extremely-precision machining, is necessary. Since the CLBO crystal has quick hydroscopic response and micro scratches in machining, extremely-specific machining on the CLBO crystal can be a challenging complex difficulty.
The beam profile revealed in Figure 7b shown a very good beam good quality as one of many merits of Raman laser, which might be valuable to generate a 193-nm DUV laser with a top quality beam.
The here conversion effectiveness from essential NIR to DUV is from 5% to 36% based on the described ends in Desk one. Expanding the conversion effectiveness will lessen the burden on the design and setup of the elemental laser amplifier along with the electric ability intake. A very good beam good quality of the fundamental laser will likely add into the raising with the conversion performance and also the right electrical power depth of your NIR and environmentally friendly laser in the SHG and FHG process, respectively. The very best conversion efficiencies from NIR to green and eco-friendly to DUV laser by use of CLBO crystal are 70% and close to fifty%, respectively [twelve], which corresponds on the conversion effectiveness of 35% from fundamental to DUV.
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