Nonetheless, to be able to system the crystal is extremely State-of-the-art producing tactics are demanded. Since the dawn of this crystal, engaged on this challenge, we are actually the one company on earth that could be processed in this crystal.
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For illustration, The present concave OC could be replaced by a aircraft mirror which could mitigate the power density on the surface area of M1 plus the diamond. Furthermore, working with higher problems threshold coatings for M1 and diamond would also Increase the output electrical power with no damages. Then, the NIR laser within the 2nd Stokes wavelength might be superior ample, together with its very good beam excellent, to deliver the final DUV laser at 193 nm which has a higher common electricity.
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The two the 1040 nm and 1078 nm laser originate from one particular twin-wavelength Yb-doped fiber laser. Just about every laser is amplified by stages of fiber amplifier and Yb-doped elements amplifier, respectively.
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Furthermore, combining the stable-state laser with other nonlinear system for example stimulated Raman scattering, NIR lasers could be reached at new wavelengths with high electricity and superior beam top quality, which was tested because of the proof-of-basic principle experiment. This Raman laser plan presents a new route to the higher-energy DUV laser, Specifically with the wavelength of 193 nm.
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The conversion efficiency from essential NIR to DUV is from 5% to 36% in accordance with the documented results in Table 1. Raising the conversion efficiency will decrease the burden on the design and set up of the fundamental laser amplifier and also the electrical ability usage. A very good beam top quality of the basic laser will also lead into the raising from the conversion effectiveness together with the right energy intensity from the NIR and eco-friendly laser from the SHG and FHG system, respectively. The best conversion efficiencies from NIR to environmentally friendly and inexperienced to DUV laser by utilization of CLBO crystal are 70% and all around 50%, respectively [12], which corresponds to the conversion performance of 35% from elementary to DUV.
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