The best Side of CLBO Crystal
The best Side of CLBO Crystal
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In this particular paper, The brand new lapping slurry and sharpening slurry are introduced. As well as the deliquescence degree of CLBO is fallen to least expensive. A whole new Doing work technological innovation can also be adopted. Following rough polishing, the focus of extremely-precision sharpening slurry is greater adequately. So does the ultra-precision polishing velocity, as well as wiping velocity is quicker compared to deliquescence velocity. The CLBO crystal surface area roughness can achieve 1nm and hold the area high-quality properly. Entry by means of your institution
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The common electric power on the NIR laser still has the prospective being improved to tens of watts which include 70 W [26] if the double-go configuration may be used with the Yb:YAG SCF amplifier phase. Consequently, In case the conversion effectiveness of 31% from NIR to DUV may very well be however preserved at this higher power situation, the normal output electric power of your DUV laser at 258 nm can be in excess of 20 W, which might be described as a extraordinary electric power degree for that DUV laser and result in the unanticipated DUV laser machining final results. Additionally, for top-power DUV laser, the UV injury from the nonlinear crystal, including the Home windows for CLBO crystal and the mirrors, is yet another significant parameter for long-lasting and stable Procedure.
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Both equally the 1040 nm and 1078 nm laser come from 1 twin-wavelength Yb-doped fiber laser. Each laser is amplified by phases of fiber amplifier and Yb-doped elements amplifier, respectively.
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During the scientific and industrial apps, the beam good quality in the DUV laser can also be an important parameter. Especially, the beam high-quality on the DUV laser significantly influences the laser machining outcomes. The beam high-quality in the DUV laser is decided by that of the fundamental laser along with the crystal for the frequency conversion. Just lately, a significant-electrical power DUV laser (>10 W) at 258 nm was described with a beam top quality of M2 < 1.five, which was produced by FHG of a Yb:YAG laser at 1030 nm using the CLBO crystal [13]. This laser would bring about an even better laser machining final result in comparison with the preceding DUV lasers with bigger M2.
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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 elementary laser wavelength. So that you can enhance the destruction threshold, minimal CLBO surface roughness, by extremely-precision machining, is needed. As the CLBO crystal has effortless hydroscopic reaction and micro scratches in machining, extremely-exact machining of the CLBO crystal is usually a challenging technical dilemma.
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The conversion efficiency from elementary NIR to DUV is from five% to 36% according to the described ends in Desk 1. Rising the conversion performance will reduce the load on the look and setup of the fundamental laser amplifier and also the electric electricity use. A fantastic beam high quality of the basic laser may even lead into the increasing from the conversion efficiency along with the suitable electrical power intensity in the NIR and eco-friendly laser inside the SHG and FHG method, respectively. The highest conversion efficiencies from NIR to green and environmentally friendly to DUV laser by use of CLBO crystal are 70% and all-around fifty%, respectively [12], which corresponds to the conversion performance of 35% from elementary to DUV.
The development on the 193-nm laser was shown by stages of SFG. In an effort to scale the DUV laser power correctly, a brand new principle of your 193-nm DUV laser generation is presented determined by the diamond Raman laser.