In this paper, The brand new lapping slurry and polishing slurry are launched. And the deliquescence degree of CLBO is fallen to most affordable. A different Operating know-how is usually adopted. After rough polishing, the focus of extremely-precision sharpening slurry is increased appropriately. So does the extremely-precision sprucing velocity, and the wiping speed is faster compared to deliquescence pace. The CLBO crystal surface roughness can reach 1nm and continue to keep the area excellent properly. Accessibility via your establishment
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全固态紫外激光器以其体积小、寿命长、效率高、光束质量好、调谐范围宽、谱线窄等优点，广泛应用于机械探伤、光刻、微加工和医学等领域，等，利用大功率近红外相干光源作为基于非线性调谐技术的基频源，通过多级变频产生紫外相干辐射被认为是发展紫外相干光源的重要途径。紫外相干光源的关键问题是研制紫外波段的非线性光学变频晶体。非线性光学晶体是实现频率变换的条件之一，因此对非线性光学晶体的生长、尺寸、损伤电阻、转换效率和允许的参数范围提出了越来越高的要求。
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Equally the 1040 nm and 1078 nm laser come from one particular dual-wavelength Yb-doped fiber laser. Each laser is amplified by phases of fiber amplifier and Yb-doped resources amplifier, respectively.
On one other facet, the ability scaling from the NIR laser is yet another part to raise the typical power with the 193-nm DUV laser. Mainly because of the not enough the significant-electricity amplification Alternative with the NIR laser (by way of example at 1553 nm), nonlinear frequency processes for instance optical parameter oscillation (OPO) may be placed on make a wavelength converter by shifting the wavelength from one μm to the desired wavelength along with getting relative greater electricity [21]. A short while ago, a diamond Raman laser showed its means in achieving a large electricity along with a significant conversion effectiveness in the 1st Stokes on the one-μm laser [22,23], which suggests the possibility to become applied within the 193-nm DUV laser generation on account of its high Raman get and huge frequency shift.
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The pulse period of the next Stokes mild was shortened to five ns as demonstrated in Figure 7a, just one-shot picture with the oscilloscope, that's a common phenomenon in Raman laser [forty four] whilst the heart beat period in the pump laser was 10 ns.
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The conversion performance from fundamental NIR to DUV is from five% to 36% according to the described ends in Desk 1. Expanding the conversion effectiveness will lessen the burden on the design and set up of the fundamental more info laser amplifier together with the electric electricity use. An excellent beam high-quality of the fundamental laser may even add towards the rising with the conversion effectiveness and also the appropriate electrical power intensity on the NIR and inexperienced laser from the SHG and FHG approach, respectively. The very best conversion efficiencies from NIR to inexperienced and inexperienced to DUV laser by utilization of CLBO crystal are 70% and all around 50%, respectively [12], which corresponds towards the conversion efficiency of 35% from fundamental to DUV.
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