5 Easy Facts About CLBO Crystal Described
5 Easy Facts About CLBO Crystal Described
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Even so, to be able to approach the crystal is very Superior production approaches are demanded. Since the dawn of this crystal, working on this challenge, we are actually the only organization on the earth which might be processed in this crystal.
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The standard electric power on the NIR laser however has the possible for being improved to tens of watts which include 70 W [26] In case the double-move configuration might be utilized for your Yb:YAG SCF amplifier stage. As a result, When the conversion efficiency of 31% from NIR to DUV may be continue to preserved at this increased electric power ailment, the standard output power on the DUV laser at 258 nm can be greater than 20 W, which would be considered a amazing ability level for the DUV laser and result in the unanticipated DUV laser machining final results. Additionally, for top-ability DUV laser, the UV damage of the nonlinear crystal, such as the Home windows for CLBO crystal and the mirrors, is yet another vital parameter for long-lasting and secure operation.
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On the opposite aspect, the power scaling of your NIR laser is yet another factor to boost the typical electric power with the 193-nm DUV laser. A result of the insufficient the superior-electricity amplification Answer in the NIR laser (for example at 1553 nm), nonlinear frequency processes which include optical parameter oscillation (OPO) could possibly be placed on create a wavelength converter by shifting the wavelength from one μm to the specified wavelength and also obtaining relative larger electricity [21]. Recently, a diamond Raman laser showed its potential in acquiring a large electric power in addition to a higher conversion efficiency on the 1st Stokes on the 1-μm laser [22,23], which suggests the possibility for being utilized inside the 193-nm DUV laser era as a consequence of its significant Raman get and huge frequency shift.
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Cesium Lithium Borate (CsLiB6O10 or CLBO) is the most effective non-linear crystal which generates ultraviolet harmonics of the Nd:YAG essential laser wavelength. In order to enhance the hurt threshold, very low CLBO floor roughness, by ultra-precision machining, is needed. As the CLBO crystal has quick hydroscopic response and micro scratches in machining, ultra-specific machining with the CLBO crystal can be a hard technical trouble.
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The conversion efficiency from essential NIR to DUV is from 5% to 36% in accordance with the reported leads to Desk one. Escalating the conversion efficiency will reduce the stress on the look and setup of the elemental laser amplifier in addition to the electric power usage. A superb beam top quality of the fundamental laser may even contribute towards the escalating in the conversion efficiency in addition to the suitable electrical power depth in the NIR and eco-friendly laser inside the SHG and FHG method, respectively. The highest conversion efficiencies from NIR to inexperienced and environmentally friendly to DUV laser by usage of CLBO crystal are 70% and all-around fifty%, respectively more info [12], which corresponds for the conversion performance of 35% from essential to DUV.
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