CLBO Crystal Fundamentals Explained
CLBO Crystal Fundamentals Explained
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All-stable-point out ultraviolet lasers are actually greatly Employed in the fields of mechanical flaw detection, lithography, micromachining and drugs for the benefits of modest volume, extended daily life, large efficiency, good beam high-quality, huge tuning and slender spectral line, etc. Employing significant electricity close to-infrared coherent light-weight supply as the fundamental frequency supply depending on nonlinear tuning engineering, making ultraviolet coherent radiation by multistage frequency conversion is viewed as a vital way to produce the ultraviolet coherent light-weight source.
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The normal energy of the NIR laser however has the possible being enhanced to tens of watts for instance 70 W [26] When the double-move configuration may very well be used for your Yb:YAG SCF amplifier stage. That's why, if the conversion efficiency of 31% from NIR to DUV may be however managed at this bigger electric power situation, the common output power in the DUV laser at 258 nm could be over 20 W, which would certainly be a outstanding electrical power degree for that DUV laser and cause the unanticipated DUV laser machining success. What's more, for top-ability DUV laser, the UV harm from the nonlinear crystal, including the Home windows for CLBO crystal and the mirrors, is yet another significant parameter for lasting and steady Procedure.
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Tunable ultraviolet laser source determined by solid-condition dye laser technologies and CsLiB6O10 harmonic generation
The conversion performance from basic NIR to DUV is from five% to 36% in accordance with the described brings about Desk 1. Raising the conversion effectiveness will lessen the load on the look and set up of the elemental laser amplifier as well as the electric power consumption. A superb beam high quality of the fundamental laser will even add to your growing from the conversion effectiveness and also the appropriate ability depth of your NIR and environmentally friendly laser in the SHG and FHG system, respectively. The best conversion efficiencies from NIR to environmentally friendly and eco-friendly to DUV laser by use of CLBO crystal are 70% and around fifty%, respectively [twelve], which corresponds to your conversion effectiveness of 35% from fundamental to DUV.
The development on the 193-nm laser was demonstrated by levels of SFG. To be able to scale the DUV laser electricity efficiently, a completely new strategy with more info the 193-nm DUV laser era is presented according to the diamond Raman laser.