In this paper, The brand new lapping slurry and polishing slurry are released. Along with the deliquescence degree of CLBO is fallen to most affordable. A completely new Doing work technologies is usually adopted. Immediately after rough sprucing, the concentration of extremely-precision sharpening slurry is increased appropriately. So does the extremely-precision polishing velocity, and also the wiping pace is quicker when compared to the deliquescence speed. The CLBO crystal area roughness can reach 1nm and preserve the floor high-quality very well. Accessibility by your institution

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We summarized the current advancement status of your substantial-electrical power DUV laser both for the wavelength of FHG in the one-μm laser and at 193 nm. The latest development with the sound-state/fiber laser, together with the nonlinear optical crystals, prompts not just the common electric power but additionally the beam high-quality (coherence) in the DUV lasers to an unparalleled level.

The main element dilemma of ultraviolet coherent light source generally concentrates on the development of nonlinear optical frequency conversion crystal in ultraviolet band. The nonlinear optical crystal has become the disorders for frequency transformation, so The expansion, dimensions, problems resistance, conversion effectiveness and allowable parameter number of nonlinear optical crystal are essential Progressively more.

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LBO is additionally a wonderful nonlinear crystal which is always placed on the SHG from the NIR for the inexperienced. The DUV laser is usually realized by two stages of SFG within the LBO crystals due to the fact there isn't any section-matching angle for LBO get more info to convert the inexperienced laser at 515 nm or 532 nm to your DUV directly by SHG [16]. Just lately, the NSBBF crystal has also revealed its likely to get a superior conversion effectiveness from 532 nm to 266 nm. The walk-off angle and deff of the NSBBF are almost comparable to Individuals of CLBO [17].

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During the scientific and industrial purposes, the beam high-quality of the DUV laser is also an important parameter. Particularly, the beam good quality in the DUV laser significantly affects the laser machining success. The beam good quality with the DUV laser is set by that of the fundamental laser and also the crystal with the frequency conversion. Not long ago, a large-energy DUV laser (>ten W) at 258 nm was noted which has a beam good quality of M2 < one.5, which was produced by FHG of the Yb:YAG laser at 1030 nm using the CLBO crystal [thirteen]. This laser would result in an improved laser machining result when compared to the previous DUV lasers with greater M2.

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