CLBO Crystal Can Be Fun For Anyone
CLBO Crystal Can Be Fun For Anyone
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During this paper, The brand new lapping slurry and sprucing slurry are launched. And also the deliquescence degree of CLBO is fallen to cheapest. A whole new Performing know-how is usually adopted. After tough sharpening, the concentration of ultra-precision polishing slurry is enhanced adequately. So does the extremely-precision sharpening speed, as well as the wiping speed is quicker when compared to the deliquescence speed. The CLBO crystal surface roughness can attain 1nm and preserve the surface area good quality properly. Obtain by your institution
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As an example, the current concave OC could be replaced by a airplane mirror which could mitigate the ability density within the surface of M1 plus the diamond. Additionally, utilizing substantial harm threshold coatings for M1 and diamond would also Increase the output electric power with no damages. Then, the NIR laser in the 2nd Stokes wavelength might be high plenty of, along with its good beam top quality, to deliver the final DUV laser at 193 nm by using a high regular ability.
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Each the 1040 nm and 1078 nm laser originate from one twin-wavelength Yb-doped fiber laser. Each laser is amplified by levels of fiber amplifier and Yb-doped materials amplifier, respectively.
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From the scientific and industrial programs, the beam top quality from the DUV laser is also a very important parameter. Specially, the beam excellent on the DUV laser significantly has an effect on the laser machining final results. The beam quality of the DUV laser is set by that of the elemental laser and the crystal for that frequency conversion. Not too long ago, a high-electricity DUV laser (>ten W) at 258 nm was noted which has a beam high quality of M2 < one.five, which was created by FHG of the Yb:YAG laser at 1030 nm using the CLBO crystal [13]. This laser would cause a better laser machining end result compared to the earlier DUV lasers with bigger M2.
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The beam profile shown in Figure 7b shown a good beam top quality as one of several deserves of Raman laser, which would be useful to crank out a 193-nm DUV laser with a top quality beam.
The conversion efficiency from elementary NIR to DUV is from 5% to 36% based on the reported ends in Table one. Growing the conversion effectiveness will lessen the load on the look and setup of the basic laser amplifier along with the electric powered energy use. An excellent beam high-quality of the fundamental laser may even add towards the rising of your conversion efficiency in addition to the suitable electricity depth with the NIR and environmentally friendly laser in the SHG and FHG procedure, respectively. The highest conversion efficiencies from NIR to eco-friendly and green to DUV laser by use of CLBO crystal are 70% and around fifty%, respectively [twelve], which corresponds for the conversion efficiency of 35% from fundamental to DUV.
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