5 Essential Elements For CLBO Crystal
5 Essential Elements For CLBO Crystal
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On this paper, The brand new lapping slurry and polishing slurry are launched. And also the deliquescence diploma of CLBO is fallen to lowest. A whole new Functioning know-how can be adopted. After rough polishing, the focus of extremely-precision sharpening slurry is enhanced thoroughly. So does the ultra-precision polishing speed, as well as the wiping pace is faster in comparison to the deliquescence pace. The CLBO crystal floor roughness can achieve 1nm and continue to keep the area excellent properly. Accessibility via your establishment
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We summarized The existing development status with the substantial-electricity DUV laser both equally within the wavelength of FHG on the one-μm laser and at 193 nm. The recent improvement in the good-point out/fiber laser, as well as the nonlinear optical crystals, prompts not simply the normal electrical power but will also the beam excellent (coherence) with the DUV lasers to an unparalleled stage.
The common energy of your NIR laser even now has the potential for being improved to tens of watts for example 70 W [26] In case the double-go configuration could be utilized for that Yb:YAG SCF amplifier phase. Hence, if the conversion efficiency of 31% from NIR to DUV can be even now managed at this larger power affliction, the common output ability on the DUV laser at 258 nm could possibly be in excess of 20 W, which might be described as a exceptional electrical power amount to the DUV laser and result in the unanticipated DUV laser machining results. In addition, for high-electricity DUV laser, the UV harm on the nonlinear crystal, including the Home windows for CLBO crystal as well as the mirrors, is yet another important parameter for long run and secure operation.
Conversely, the beam good quality of the greater electric power DUV laser would turn out to be worse resulting from more critical thermal and nonlinear outcomes. Hence, the frequency conversion processes needs to be thoroughly designed to mitigate the aforementioned effects. Therefore, a high-electrical power DUV laser with the FHG of one μm with a fantastic beam high-quality could be obtained and can be beneficial for obtaining the shorter wavelength DUV lasers like 193 nm by SFG.
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On the other aspect, the power scaling of your NIR laser is yet another factor to raise the typical power with the 193-nm DUV laser. As a result of not enough the substantial-electrical power amplification Answer of the NIR laser (one example is at 1553 nm), nonlinear frequency processes which include optical parameter oscillation (OPO) may very well be applied to produce a wavelength converter by shifting the wavelength from 1 μm to the specified wavelength as well as getting relative better energy [21]. Recently, a diamond Raman laser showed its potential in acquiring a high ability and a large conversion effectiveness for the 1st Stokes with the one-μm laser [22,23], which means the likelihood being utilized inside the 193-nm DUV laser generation due to its large Raman achieve and huge frequency change.
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While in the scientific and industrial apps, the beam good quality with the DUV laser is additionally a crucial parameter. Especially, the beam quality of your DUV laser considerably influences the laser machining final results. The beam quality with the DUV laser is set by that of the elemental laser as well as crystal to the frequency conversion. Recently, a significant-energy DUV laser (>ten W) at 258 nm was reported by using a beam quality of M2 < 1.5, which was generated by FHG of the Yb:YAG laser at 1030 nm utilizing the CLBO crystal [13]. This laser would bring on a much better laser machining end result in comparison to the earlier DUV lasers with more substantial M2.
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