The Ultimate Guide To CLBO Crystal
The Ultimate Guide To CLBO Crystal
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All-sound-point out ultraviolet lasers happen to be commonly Employed in the fields of mechanical flaw detection, lithography, micromachining and drugs for some great benefits of small quantity, extensive life, superior performance, superior beam top quality, vast tuning and slender spectral line, etc. Making use of significant electric power close to-infrared coherent gentle supply as the basic frequency resource based on nonlinear tuning technologies, creating ultraviolet coherent radiation by multistage frequency conversion is thought to be a very important way to develop the ultraviolet coherent light-weight resource.
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We summarized the current development position with the substantial-electricity DUV laser both equally within the wavelength of FHG of the 1-μm laser and at 193 nm. The modern development on the reliable-point out/fiber laser, as well as the nonlinear optical crystals, prompts not just the typical electrical power but additionally the beam high-quality (coherence) in the DUV lasers to an unprecedented stage.
The average electrical power from the NIR laser even now has the likely for being enhanced to tens of watts including 70 W [26] When the double-go configuration can be utilized to the Yb:YAG SCF amplifier phase. Hence, In the event the conversion effectiveness of 31% from NIR to DUV can be continue to managed at this bigger electrical power affliction, the average output electrical power on the DUV laser at 258 nm can be greater than 20 W, which would become a impressive electricity amount with the DUV laser and produce the unanticipated DUV laser machining effects. Additionally, for high-ability DUV laser, the UV problems on the nonlinear crystal, including the windows for CLBO crystal as well as mirrors, is an additional essential parameter for long-term and secure Procedure.
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Tunable ultraviolet laser resource dependant on solid-state dye laser technologies and CsLiB6O10 harmonic era
The conversion performance from basic NIR to DUV is from five% to 36% according to the claimed leads to Desk 1. Raising the conversion efficiency will decrease the stress on the design and set up of the click here fundamental laser amplifier together with the electric electricity use. An excellent beam high-quality of the basic laser will likely contribute on the raising from the conversion efficiency and also the right power intensity from the NIR and inexperienced laser from the SHG and FHG system, respectively. The best conversion efficiencies from NIR to environmentally friendly and environmentally friendly to DUV laser by usage of CLBO crystal are 70% and around fifty%, respectively [twelve], which corresponds to your conversion effectiveness of 35% from basic to DUV.
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