The best Side of CLBO Crystal
The best Side of CLBO Crystal
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In this paper, the new lapping slurry and sprucing slurry are released. Along with the deliquescence diploma of CLBO is fallen to lowest. A fresh Performing technology is additionally adopted. Soon after rough polishing, the focus of ultra-precision sharpening slurry is enhanced adequately. So does the extremely-precision sharpening speed, as well as the wiping speed is quicker in comparison to the deliquescence pace. The CLBO crystal area roughness can achieve 1nm and maintain the surface high quality nicely. Access via your establishment
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The normal ability of your NIR laser nevertheless has the potential to be enhanced to tens of watts such as 70 W [26] In the event the double-pass configuration might be used for the Yb:YAG SCF amplifier stage. For this reason, If your conversion efficiency of 31% from NIR to DUV could be however maintained at this bigger electrical power ailment, the typical output electric power of the DUV laser at 258 nm might be greater than 20 W, which would be described as a remarkable energy degree for that DUV laser and produce the unanticipated DUV laser machining outcomes. In addition, for high-electrical power DUV laser, the UV injury with the nonlinear crystal, such as the Home windows for CLBO crystal plus the mirrors, is an additional critical parameter for long run and steady operation.
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On the opposite side, the ability scaling of the NIR laser is an additional aspect to improve the ordinary electricity with the 193-nm DUV laser. Because of the deficiency of the superior-energy amplification Resolution of your NIR laser (by way of example at 1553 nm), nonlinear frequency procedures including optical parameter oscillation (OPO) may very well be placed on establish a wavelength converter by shifting the wavelength from one μm to the specified wavelength as well as getting relative higher energy [21]. Not too long ago, a diamond Raman laser showed its capability in reaching a higher electricity and a higher conversion efficiency in the 1st Stokes of the one-μm laser [22,23], which suggests the possibility to generally be applied from the 193-nm DUV laser era because of its superior Raman achieve and large frequency shift.
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While in the scientific and industrial programs, the beam top quality in the DUV laser is additionally a vital parameter. Specifically, the beam good quality in the DUV laser significantly has an effect on the laser machining benefits. The beam top quality of the DUV laser is decided by that of the fundamental laser as well as crystal to the frequency conversion. Recently, a higher-power DUV laser (>10 W) at 258 nm was claimed using a beam high-quality of M2 < 1.5, which was produced by FHG of the Yb:YAG laser at 1030 nm using the CLBO crystal [13]. This laser would bring on a greater laser machining end result as compared to the click here earlier DUV lasers with much larger M2.
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Cesium Lithium Borate (CsLiB6O10 or CLBO) is the most effective non-linear crystal which generates ultraviolet harmonics in the Nd:YAG elementary laser wavelength. In order to enrich the harm threshold, reduced CLBO floor roughness, by extremely-precision machining, is needed. Because the CLBO crystal has uncomplicated hydroscopic reaction and micro scratches in machining, extremely-specific machining of the CLBO crystal is usually a tricky technological difficulty.
The beam profile demonstrated in Figure 7b shown a very good beam quality as among the merits of Raman laser, which might be valuable to crank out a 193-nm DUV laser with a high quality beam.
Its UV absorption edge reaches a hundred and eighty nm. The powerful nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about twice as large as that of KDP. CLBO crystals is often grown within the stoichiometric melt with lessen viscosity.
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