How Much You Need To Expect You'll Pay For A Good CLBO Crystal
How Much You Need To Expect You'll Pay For A Good CLBO Crystal
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All-reliable-condition ultraviolet lasers are already commonly Employed in the fields of mechanical flaw detection, lithography, micromachining and drugs for the benefits of tiny volume, prolonged lifetime, substantial efficiency, good beam quality, large tuning and slim spectral line, etcetera. Using higher energy in the vicinity of-infrared coherent gentle source as the basic frequency source dependant on nonlinear tuning technologies, producing ultraviolet coherent radiation by multistage frequency conversion is thought to be a very important method to acquire the ultraviolet coherent light source.
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The typical energy of the NIR laser nevertheless has the possible being improved to tens of watts including 70 W [26] if the double-move configuration could be used for your Yb:YAG SCF amplifier stage. Therefore, if the conversion effectiveness of 31% from NIR to DUV can be nonetheless preserved at this greater ability problem, the normal output power in the DUV laser at 258 nm may very well be greater than 20 W, which might become a amazing power level for the DUV laser and result in the unanticipated DUV laser machining final results. Additionally, for prime-electrical power DUV laser, the UV hurt on the nonlinear crystal, such as the windows for CLBO crystal along with the mirrors, is an additional essential parameter for long-term and secure Procedure.
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LBO is usually a superb nonlinear crystal which is often placed on the SHG from the NIR on the inexperienced. The DUV laser is usually realized by two stages of SFG inside the LBO crystals considering the fact that there's no stage-matching angle for LBO to convert the eco-friendly laser at 515 nm or 532 nm towards the DUV immediately by SHG [16]. Not too long ago, the NSBBF crystal has also proven its possible to obtain a high conversion performance from 532 nm to 266 nm. The stroll-off angle and deff from the NSBBF are Practically much like These of CLBO [seventeen].
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Tunable ultraviolet laser resource dependant on solid-point out dye laser technology and CsLiB6O10 harmonic technology
The conversion performance from fundamental NIR to DUV is from five% to 36% according to the claimed leads to Desk 1. Rising the conversion performance will reduce the load on the look and setup of the basic laser amplifier in addition to the electric powered energy intake. A very good beam top quality of the basic laser will likely add towards the rising on the conversion performance in addition to the appropriate electricity intensity on the NIR click here and inexperienced laser from the SHG and FHG method, respectively. The highest conversion efficiencies from NIR to eco-friendly and green to DUV laser by use of CLBO crystal are 70% and all-around fifty%, respectively [12], which corresponds for the conversion efficiency of 35% from essential to DUV.
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