The Greatest Guide To CLBO Crystal
The Greatest Guide To CLBO Crystal
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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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LBO is additionally a wonderful nonlinear crystal which is always applied to the SHG with the NIR into the eco-friendly. The DUV laser is frequently recognized by two phases of SFG from the LBO crystals due to the fact there isn't a section-matching angle for LBO to transform the green laser at 515 nm or 532 nm on the DUV specifically by SHG [sixteen]. Recently, the NSBBF crystal has also revealed its opportunity to obtain a superior conversion performance from 532 nm to 266 nm. The stroll-off angle and deff of your NSBBF are Nearly similar to Those people of CLBO [seventeen].
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From the scientific and industrial apps, the beam excellent with the DUV laser is likewise a significant parameter. Specially, the beam good quality in the DUV laser substantially impacts the laser machining effects. The beam good quality in the DUV laser is determined by that of the elemental laser along with the crystal for your frequency conversion. Recently, a significant-electricity DUV laser (>10 W) at 258 nm was described having a beam high-quality of M2 < 1.five, which was generated by FHG of a Yb:YAG laser at 1030 nm utilizing the CLBO crystal [thirteen]. This laser would bring about a far better click here laser machining end result compared to the earlier DUV lasers with larger sized M2.
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Cesium Lithium Borate (CsLiB6O10 or CLBO) is the simplest non-linear crystal which generates ultraviolet harmonics of your Nd:YAG essential laser wavelength. To be able to improve the injury threshold, minimal CLBO floor roughness, by extremely-precision machining, is required. Since the CLBO crystal has straightforward hydroscopic reaction and micro scratches in machining, extremely-exact machining of the CLBO crystal is usually a tricky specialized problem.
The beam profile proven in Determine 7b shown a good beam top quality as on the list of deserves of Raman laser, which would be helpful to create a 193-nm DUV laser with a top quality beam.
Its UV absorption edge reaches a hundred and eighty nm. The successful nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about twice as large as that of KDP. CLBO crystals can be developed from your stoichiometric soften with decrease viscosity.
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