CLBO Crystal Things To Know Before You Buy
CLBO Crystal Things To Know Before You Buy
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With this paper, the new lapping slurry and sharpening slurry are launched. And also the deliquescence diploma of CLBO is fallen to most affordable. A whole new working technology can also be adopted. Soon after rough sharpening, the concentration of ultra-precision sharpening slurry is increased properly. So does the ultra-precision sprucing velocity, along with the wiping velocity is faster when compared to the deliquescence speed. The CLBO crystal floor roughness can obtain 1nm and hold the surface area quality perfectly. Entry through your establishment
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We summarized The existing improvement status in the substantial-power DUV laser both of those with the wavelength of FHG with the 1-μm laser and at 193 nm. The modern enhancement in the good-condition/fiber laser, in addition to the nonlinear optical crystals, prompts not just the standard electric power but additionally the beam quality (coherence) of the DUV lasers to an unparalleled stage.
For instance, the current concave OC could be replaced by a plane mirror which could mitigate the power density within the area of M1 and also the diamond. Moreover, making use of higher destruction threshold coatings for M1 and diamond would also Increase the output electrical power without any damages. Then, the NIR laser for the 2nd Stokes wavelength could possibly be high more than enough, and also its great beam high quality, to make the ultimate DUV laser at 193 nm that has a superior common electric power.
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The two the 1040 nm and 1078 nm laser come from 1 twin-wavelength Yb-doped fiber laser. Each laser is amplified by stages of fiber amplifier and Yb-doped resources amplifier, respectively.
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Cesium Lithium Borate (CsLiB6O10 or CLBO) is the most effective non-linear crystal which generates ultraviolet harmonics of your Nd:YAG basic laser wavelength. So that you can boost the problems threshold, low CLBO surface area roughness, by ultra-precision machining, is required. Since the CLBO crystal has quick hydroscopic reaction and micro scratches in machining, ultra-precise machining in the CLBO crystal is often a complicated technical trouble.
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The conversion efficiency from essential NIR to DUV is from five% to 36% based on the described leads to Table one. Rising the conversion efficiency will reduce the stress on the design and set up of the basic laser amplifier together with the electric powered electric power usage. An excellent beam high quality of the elemental laser may even contribute to your escalating of your conversion efficiency and the appropriate electric power intensity on the NIR and environmentally friendly laser while in the SHG and FHG system, respectively. The highest conversion efficiencies from NIR to inexperienced and environmentally friendly to DUV laser by usage of CLBO crystal are 70% and about 50%, respectively [twelve], which corresponds to your conversion performance of 35% from fundamental to DUV.
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