Nevertheless, as a way to procedure the crystal is quite Sophisticated producing approaches are necessary. Considering that the dawn of the crystal, working on this challenge, we at the moment are the only business in the world which can be processed Within this crystal.
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We summarized The present advancement status of your higher-electric power DUV laser both of those for the wavelength of FHG with the 1-μm laser and at 193 nm. The new advancement of your sound-point out/fiber laser, in addition to the nonlinear optical crystals, prompts don't just the common electricity and also the beam high quality (coherence) of the DUV lasers to an unparalleled degree.
As an illustration, The present concave OC could be replaced by a plane mirror which could mitigate the facility density on the floor of M1 and the diamond. Moreover, using significant injury threshold coatings for M1 and diamond would also Increase the output electricity without any damages. Then, the NIR laser for the 2nd Stokes wavelength could possibly be substantial sufficient, and also its good beam good quality, to generate the final DUV laser at 193 nm that has a substantial average electricity.
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Equally the 1040 nm and check here 1078 nm laser come from just one dual-wavelength Yb-doped fiber laser. Just about every laser is amplified by stages of fiber amplifier and Yb-doped supplies amplifier, respectively.
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Cesium Lithium Borate (CsLiB6O10 or CLBO) is the best non-linear crystal which generates ultraviolet harmonics from the Nd:YAG basic laser wavelength. In an effort to increase the problems threshold, lower CLBO floor roughness, by ultra-precision machining, is needed. As the CLBO crystal has quick hydroscopic reaction and micro scratches in machining, ultra-specific machining on the CLBO crystal is actually a tough technological dilemma.
Tunable ultraviolet laser supply according to good-state dye laser technological know-how and CsLiB6O10 harmonic era
The conversion performance from fundamental NIR to DUV is from 5% to 36% in accordance with the documented brings about Desk 1. Raising the conversion efficiency will lessen the burden on the design and set up of the elemental laser amplifier along with the electrical electrical power intake. A good beam top quality of the elemental laser will also contribute on the expanding from the conversion effectiveness and also the right energy intensity with the NIR and environmentally friendly laser in the SHG and FHG course of action, respectively. The best conversion efficiencies from NIR to inexperienced and inexperienced to DUV laser by utilization of CLBO crystal are 70% and all around 50%, respectively [12], which corresponds into the conversion effectiveness of 35% from fundamental to DUV.
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