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We summarized The present improvement status of the large-ability DUV laser each in the wavelength of FHG with the one-μm laser and at 193 nm. The modern improvement with the sound-state/fiber laser, together with the nonlinear optical crystals, prompts not just the typical electrical power but in addition the beam high quality (coherence) with the DUV lasers to an unprecedented level.
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。
Then again, the beam quality of this increased energy DUV laser would become worse resulting from far more severe thermal and nonlinear outcomes. As a result, the frequency conversion procedures needs to be cautiously created to mitigate the aforementioned consequences. As a result, a large-electric power DUV laser at the FHG of 1 μm with a very good beam high quality may be received and can be useful for getting the shorter wavelength DUV lasers for example 193 nm by SFG.
LBO can be a wonderful nonlinear crystal which is usually placed on the SHG in the NIR to the green. The DUV laser is frequently realized by two phases of SFG from the LBO crystals considering that there isn't a period-matching angle for LBO to transform the inexperienced laser at 515 nm or 532 nm on the DUV straight by SHG [16]. A short while ago, the NSBBF crystal has also revealed its potential to get a significant conversion performance from 532 nm to 266 nm. The stroll-off angle and deff of your NSBBF are Practically comparable to those of CLBO [17].
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The pulse length of the 2nd Stokes light-weight was shortened to five ns as revealed in Figure 7a, a single-shot picture with the oscilloscope, which is a standard phenomenon in Raman laser [44] although the heart beat length on the pump laser was ten ns.
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Tunable ultraviolet laser source depending on solid-point out dye laser technological know-how and CsLiB6O10 harmonic technology
Its UV absorption edge reaches one hundred eighty nm. The successful nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about twice as big as that of KDP. CLBO crystals is usually grown through the stoichiometric soften with decrease viscosity.
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