In this paper, the new lapping slurry and polishing slurry are launched. And the deliquescence degree of CLBO is fallen to least expensive. A fresh Doing the job know-how is additionally adopted. Just after rough polishing, the concentration of ultra-precision polishing slurry is improved adequately. So does the extremely-precision sharpening pace, and also the wiping speed is quicker compared to the deliquescence speed. The CLBO crystal area roughness can realize 1nm and keep the area quality nicely. Access as a result of your establishment
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We summarized The present development standing from the superior-electric power DUV laser equally with the wavelength of FHG on the 1-μm laser and at 193 nm. The new growth from the good-condition/fiber laser, along with the nonlinear optical crystals, prompts don't just the standard power but additionally the beam high quality (coherence) with the DUV lasers to an unparalleled level.
The typical power from the NIR laser nonetheless has the opportunity to generally be enhanced to tens of watts for example 70 W [26] In the event the double-go configuration may be utilized for that Yb:YAG SCF amplifier stage. For this reason, if the conversion effectiveness of 31% from NIR to DUV could be however taken care of at this higher energy affliction, the typical output ability in the DUV laser at 258 nm can be over twenty W, which might be considered a outstanding electric power level to the DUV laser and cause the unanticipated DUV laser machining success. What's more, for top-ability DUV laser, the UV destruction of your nonlinear crystal, such as the windows for CLBO crystal along with the mirrors, is yet another important parameter for long-lasting and secure Procedure.
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LBO is additionally an excellent nonlinear crystal which is always placed on the SHG from the NIR to your green. The DUV laser is often understood by two levels of SFG within the LBO crystals considering the fact that there is not any section-matching angle for LBO to transform the environmentally friendly laser at 515 nm or 532 nm to the DUV directly by SHG [sixteen]. A short while ago, the NSBBF crystal has also revealed its opportunity to acquire a substantial conversion effectiveness from 532 nm to 266 nm. The walk-off angle and deff of the NSBBF are almost comparable to People of CLBO [seventeen].
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The heart beat length of the second Stokes gentle was shortened to 5 ns as demonstrated in Determine 7a, an individual-shot photograph through the oscilloscope, that is a typical phenomenon read more in Raman laser [forty four] although the heart beat duration in the pump laser was ten ns.
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