A Secret Weapon For CLBO Crystal
A Secret Weapon For CLBO Crystal
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All-sound-state ultraviolet lasers are actually extensively Employed in the fields of mechanical flaw detection, lithography, micromachining and medicine for the benefits of modest volume, extensive lifestyle, superior effectiveness, fantastic beam high quality, wide tuning and slender spectral line, and so forth. Employing large electricity near-infrared coherent light supply as the elemental frequency source according to nonlinear tuning technologies, making ultraviolet coherent radiation by multistage frequency conversion is considered a vital method to establish the ultraviolet coherent light supply.
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Based on the evidence-of-principle experiment, the conversion performance of 23% implied the potential of attaining superior-electricity at the second Stokes wavelength with the Raman laser. If your pump laser of 1078 nm could possibly be obtained at the normal electricity of 50 W, the output power of its 2nd Stokes wavelength at 1512 nm could possibly be a lot more than ten W. The design from the Raman laser cavity should be optimized as a way to stay away from the destruction of your M1 and diamond floor.
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。
Conversely, the beam top quality of this greater energy DUV laser would become even worse resulting from more significant thermal and nonlinear outcomes. That's why, the frequency conversion processes must be thoroughly created to mitigate the aforementioned consequences. So, a large-power DUV laser within the FHG of one μm with a very good beam high-quality may be obtained and will be useful for acquiring the shorter wavelength DUV lasers like 193 nm by SFG.
LBO is also a great nonlinear crystal which is usually placed on the SHG from your NIR towards the green. The DUV laser is generally realized by two stages of SFG from the LBO crystals given that there is absolutely no stage-matching angle for LBO to convert the eco-friendly laser at 515 nm or 532 nm to the DUV immediately by SHG [sixteen]. Recently, the NSBBF crystal has also proven its probable to acquire a higher conversion performance from 532 nm to 266 nm. The stroll-off angle and deff of your NSBBF are almost much like Individuals of CLBO [17].
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Tunable ultraviolet laser source determined by stable-point out dye laser know-how and CsLiB6O10 harmonic generation
The conversion effectiveness from basic NIR to DUV is from 5% to 36% in accordance with the documented leads to Desk 1. Growing the conversion effectiveness will reduce the load on the design and set up of the basic laser amplifier in addition to the electric electric power consumption. A very good beam good quality of the fundamental laser can even contribute on the escalating of the conversion effectiveness and the right energy depth from the NIR and environmentally friendly laser during the SHG and FHG system, respectively. The very best conversion efficiencies from NIR to eco-friendly and environmentally friendly to DUV laser CLBO Crystal by use of CLBO crystal are 70% and all around fifty%, respectively [twelve], which corresponds towards the conversion effectiveness of 35% from elementary to DUV.
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