A Secret Weapon For CLBO Crystal
A Secret Weapon For CLBO Crystal
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On this paper, The brand new lapping slurry and sharpening slurry are launched. As well as deliquescence diploma of CLBO is fallen to least expensive. A fresh Doing work technologies is likewise adopted. Following tough sprucing, the focus of ultra-precision sprucing slurry is elevated appropriately. So does the extremely-precision polishing speed, along with the wiping velocity is quicker compared to the deliquescence pace. The CLBO crystal surface roughness can reach 1nm and keep the surface area excellent perfectly. Access via your institution
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We summarized The present growth standing in the large-electrical power DUV laser the two in the wavelength of FHG of the one-μm laser and at 193 nm. The modern progress on the strong-point out/fiber laser, together with the nonlinear optical crystals, prompts not merely the typical ability and also the beam high-quality (coherence) from the DUV lasers to an unprecedented amount.
For illustration, The present concave OC could get replaced by a plane mirror which could mitigate the ability density over the surface of M1 and also the diamond. Furthermore, utilizing substantial harm threshold coatings for M1 and diamond would also Increase the output electrical power with none damages. Then, the NIR laser with the 2nd Stokes wavelength may be substantial sufficient, in addition to its fantastic beam top quality, to deliver the final DUV laser at 193 nm by using a significant ordinary electrical power.
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While in the scientific and industrial apps, the beam excellent of the DUV laser can also be an essential parameter. Especially, the beam quality of the DUV laser radically influences the laser machining final results. The beam high quality of your DUV laser is set by that of the elemental laser plus the crystal for your frequency conversion. Recently, a large-power DUV laser (>10 W) at 258 nm was claimed with a beam high-quality of M2 < one.5, which was created by FHG of the Yb:YAG laser at 1030 nm utilizing the CLBO crystal [13]. This laser would bring about a far better laser machining final result as compared to the earlier DUV lasers with bigger M2.
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Moreover, combining the reliable-point out laser with other nonlinear process for example stimulated Raman scattering, NIR lasers may very well be accomplished at new wavelengths with large electricity and significant beam excellent, which was analyzed because of the evidence-of-basic principle experiment. This Raman laser scheme offers a fresh route to the substantial-electric power DUV laser, Primarily within the wavelength of 193 nm.
Tunable ultraviolet laser supply dependant on good-point out dye laser technology and CsLiB6O10 harmonic technology
The conversion efficiency from essential NIR to DUV is from 5% to 36% in accordance with the described leads to Desk 1. Expanding the conversion efficiency will lessen the burden on the design and set up of the fundamental laser amplifier together with the electric electric power consumption. An excellent beam high-quality of the fundamental laser may even add to the escalating with the conversion performance as well as the suitable electric power depth of your NIR and environmentally friendly laser in the SHG and FHG method, respectively. The best conversion efficiencies from NIR to green and green to DUV laser by usage of CLBO crystal are 70% and around fifty%, respectively [twelve], which corresponds on the conversion effectiveness of 35% from fundamental to DUV.
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