CLBO Crystal - An Overview
CLBO Crystal - An Overview
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All-sound-condition ultraviolet lasers are already broadly used in the fields of mechanical flaw detection, lithography, micromachining and drugs for the benefits of small quantity, prolonged life, significant effectiveness, good beam top quality, large tuning and slender spectral line, etcetera. Utilizing high energy around-infrared coherent mild resource as the fundamental frequency supply based on nonlinear tuning engineering, building ultraviolet coherent radiation by multistage frequency conversion is thought to be a crucial way to acquire the ultraviolet coherent mild resource.
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The typical electrical power in the NIR laser nevertheless has the prospective to be improved to tens of watts like 70 W [26] if the double-go configuration may very well be utilized with the Yb:YAG SCF amplifier phase. As a result, If your conversion effectiveness of 31% from NIR to DUV can be nevertheless managed at this greater electric power situation, the common output ability from the DUV laser at 258 nm might be greater than 20 W, which would certainly be a outstanding energy level for your DUV laser and cause the unanticipated DUV laser machining results. Furthermore, for high-electricity DUV laser, the UV destruction from the nonlinear crystal, including the windows for CLBO crystal and also the mirrors, is another essential parameter for long term and secure operation.
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Tunable ultraviolet laser resource dependant on good-point out dye laser know-how and CsLiB6O10 harmonic era
The conversion effectiveness from essential NIR to DUV is from 5% to 36% based on the claimed results in Table one. Increasing the conversion effectiveness will decrease the stress on the look and set up of the fundamental laser amplifier plus the electric powered power use. A great beam good quality of the basic laser can even add into the increasing of the conversion efficiency as well as the appropriate power intensity in the NIR and eco-friendly laser inside the SHG and FHG approach, respectively. The very best conversion efficiencies from NIR to green and green to DUV laser by usage of CLBO crystal are 70% and all over fifty%, respectively [12], which corresponds to the conversion performance of 35% from elementary to DUV.
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