During this paper, The brand new lapping slurry and sprucing slurry are launched. Along with the deliquescence degree of CLBO is fallen to lowest. A different Doing the job technology can also be adopted. Right after rough polishing, the concentration of extremely-precision polishing slurry is greater properly. So does the extremely-precision sprucing velocity, along with the wiping pace is faster as opposed to deliquescence pace. The CLBO crystal surface roughness can achieve 1nm and continue to keep the surface area good quality properly. Accessibility via your institution
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For example, the current concave OC could get replaced by a aircraft mirror which could mitigate the power density over the floor of M1 as well as the diamond. Furthermore, working with substantial harm threshold coatings for M1 and diamond would also Increase the output electricity with none damages. Then, the NIR laser for the 2nd Stokes wavelength may be higher enough, together with its excellent beam quality, to create the ultimate DUV laser at 193 nm which has a higher ordinary energy.
On the flip side, the beam quality of this greater ability DUV laser would turn into even worse on account of much more really serious thermal and nonlinear outcomes. Hence, the frequency conversion processes really should be carefully created to mitigate the aforementioned results. Consequently, a superior-power DUV laser in the FHG of 1 μm with a great beam top quality could possibly be acquired and can be useful for acquiring the shorter wavelength DUV lasers like 193 nm by SFG.
Both the 1040 nm and 1078 nm laser originate from one twin-wavelength Yb-doped fiber laser. Each individual laser is amplified by levels of fiber amplifier and Yb-doped products amplifier, respectively.
On the opposite aspect, the ability scaling from the NIR laser is another aspect to enhance the normal electric power in the 193-nm DUV laser. As a result of lack of the significant-electrical power amplification Remedy of the NIR laser (one example is at 1553 nm), nonlinear frequency processes which include optical parameter oscillation (OPO) may be placed on establish a wavelength converter by shifting the wavelength from 1 μm to the specified wavelength and also obtaining relative increased energy [21]. A short while ago, a diamond Raman laser confirmed its capability in accomplishing a higher electric power as well as a superior conversion performance within the 1st Stokes of the 1-μm laser [22,23], which implies the possibility to become applied within the 193-nm DUV laser generation thanks to its higher Raman acquire and large frequency change.
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Its UV absorption edge reaches a hundred and eighty nm. The productive nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about two times as huge as that of KDP. CLBO crystals could be developed with the stoichiometric melt with lower viscosity.
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