CLBO Crystal Secrets

Having said that, as a way to method the crystal is quite Sophisticated producing strategies are essential. For the reason that dawn of the crystal, focusing on this obstacle, we are now the only real enterprise in the world that could be processed Within this 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 can be a superb nonlinear crystal which is always placed on the SHG with the NIR into the inexperienced. The DUV laser is generally realized by two levels of SFG within the LBO crystals given that there is absolutely no section-matching angle for LBO to convert the environmentally friendly laser at 515 nm or 532 nm into the DUV directly by SHG [sixteen]. Just lately, the NSBBF crystal has also revealed its potential to obtain a higher conversion efficiency from 532 nm to 266 nm. The wander-off angle and deff of your NSBBF are almost similar to All those of CLBO [17].

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In addition, combining the stable-point out laser with other nonlinear method such as stimulated Raman scattering, NIR lasers may very well be achieved at new wavelengths with high electrical power and large beam high quality, which was tested from the proof-of-principle experiment. This Raman laser scheme offers a fresh route to the significant-ability DUV laser, Primarily within the wavelength of 193 nm.

The beam profile proven in Determine 7b shown a fantastic beam top quality as one of the merits of Raman laser, which would be helpful to crank out a 193-nm DUV laser with a top quality beam.

The conversion efficiency from elementary NIR to DUV is from 5% to 36% in accordance with the described leads to Desk 1. Growing the conversion performance will lessen the stress on the look and setup of the basic laser amplifier as well as the electric powered electric power consumption. A superb beam high-quality of the elemental laser will even lead towards the growing from the conversion effectiveness as well as the suitable electrical power depth from the NIR and green laser from the SHG and FHG procedure, respectively. The very best conversion efficiencies from NIR to inexperienced and environmentally friendly to DUV laser by usage of CLBO crystal are 70% and all-around fifty%, respectively [twelve], which corresponds to your conversion effectiveness of 35% from elementary to DUV.

The event on the 193-nm laser was shown by levels of SFG. So as to scale the DUV laser electrical power correctly, a whole new concept on the 193-nm DUV laser technology is presented determined by the diamond Raman laser.