The smart Trick of CLBO Crystal That No One is Discussing
The smart Trick of CLBO Crystal That No One is Discussing
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All-reliable-condition ultraviolet lasers are already greatly Employed in the fields of mechanical flaw detection, lithography, micromachining and medicine for the advantages of little volume, lengthy daily life, higher efficiency, great beam high-quality, wide tuning and narrow spectral line, etc. Using significant electricity in the vicinity of-infrared coherent light source as the elemental frequency resource according to nonlinear tuning know-how, generating ultraviolet coherent radiation by multistage frequency conversion is viewed as a crucial technique to develop the ultraviolet coherent mild source.
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In accordance with the proof-of-principle experiment, the conversion efficiency of 23% implied the possibility of attaining superior-electrical power at the next Stokes wavelength on the Raman laser. If your pump laser of 1078 nm may very well be received at the normal electricity of 50 W, the output electrical power of its 2nd Stokes wavelength at 1512 nm could possibly be over 10 W. The design of your Raman laser cavity need to be optimized so that you can stay away from the hurt in the M1 and diamond surface area.
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 also be a great nonlinear crystal which is often placed on the SHG through the NIR to your green. The DUV laser is usually understood by two stages of SFG from the LBO crystals since there's no phase-matching angle for LBO to convert the green laser at 515 nm or 532 nm into the DUV specifically by SHG [sixteen]. Not long ago, the NSBBF crystal has also proven its possible to get a large conversion effectiveness from 532 nm to 266 nm. The walk-off angle and deff of the NSBBF are Just about much like Individuals of CLBO [seventeen].
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Additionally, combining the solid-condition laser with other nonlinear procedure for instance stimulated Raman scattering, NIR lasers could be reached at new wavelengths with high electricity and high beam top quality, which was examined by the proof-of-principle experiment. This Raman laser plan offers a whole new path to the superior-energy DUV laser, Specifically within the wavelength of 193 nm.
The beam profile revealed in Determine 7b demonstrated an excellent beam high-quality as among the merits of Raman laser, which would be helpful to make a 193-nm DUV laser with a top quality beam.
Its UV absorption edge reaches one hundred eighty nm. The effective nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about 2 times as huge as that of KDP. CLBO crystals can be developed in the stoichiometric melt with reduce viscosity.
The event from the 193-nm laser was shown by stages of SFG. website So that you can scale the DUV laser energy correctly, a whole new idea with the 193-nm DUV laser generation is presented determined by the diamond Raman laser.