5 Essential Elements For CLBO Crystal
5 Essential Elements For CLBO Crystal
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Nevertheless, to be able to method the crystal is quite State-of-the-art production methods are required. Since the dawn of the crystal, engaged on this obstacle, we are actually the one organization in the world that could be processed in this crystal.
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We summarized The existing progress status from the superior-electricity DUV laser each at the wavelength of FHG with the 1-μm laser and at 193 nm. The new advancement of the reliable-state/fiber laser, as well as the nonlinear optical crystals, prompts not merely the normal power but additionally the beam good quality (coherence) with the DUV lasers to an unparalleled stage.
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 also a fantastic nonlinear crystal which is often applied to the SHG from the NIR on the green. The DUV laser will likely be understood by two phases of SFG inside the LBO crystals because there is absolutely no phase-matching angle for LBO to convert the inexperienced laser at 515 nm or 532 nm into the DUV instantly by SHG [16]. Recently, the NSBBF crystal has also shown its likely to get a substantial conversion performance from 532 nm to 266 nm. The wander-off angle and deff of your NSBBF are Virtually just like Individuals of CLBO [17].
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While in the scientific and industrial programs, the beam high quality of the DUV laser is usually a vital parameter. Especially, the beam good quality on the DUV laser substantially impacts the laser machining results. The beam high-quality on the DUV laser is determined by that of the basic laser and also the crystal for your frequency conversion. Recently, a substantial-energy DUV laser (>10 W) at 258 nm was described using a beam quality of M2 < 1.five, which was generated by FHG of the Yb:YAG laser at 1030 nm using the CLBO crystal [13]. This laser would produce an improved laser machining result when compared to the prior DUV lasers with much larger M2.
The heartbeat duration of the 2nd Stokes mild was shortened to 5 ns as revealed in Figure 7a, an individual-shot picture with the oscilloscope, that's a common phenomenon in Raman laser [forty four] while the heart beat period in the pump laser was ten ns.
Cesium Lithium Borate (CsLiB6O10 or CLBO) is the most effective non-linear crystal which generates ultraviolet harmonics with the Nd:YAG essential laser wavelength. So as to enrich the destruction threshold, small CLBO floor roughness, by ultra-precision machining, is needed. As the CLBO crystal has effortless hydroscopic reaction and micro scratches in machining, extremely-exact machining on the CLBO crystal is actually a complicated complex issue.
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