The best Side of CLBO Crystal
The best Side of CLBO Crystal
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For instance, The existing concave OC could be replaced by a airplane mirror which could mitigate the ability density within the area of M1 plus the diamond. In addition, applying substantial problems threshold coatings for M1 and diamond would also Increase the output electricity with none damages. Then, the NIR laser at the 2nd Stokes wavelength can be higher more than enough, together with its great beam top quality, to generate the ultimate DUV laser at 193 nm that has a substantial average electric power.
On the flip side, the beam good quality of the better energy DUV laser would come to be worse resulting from more significant thermal and nonlinear consequences. Hence, the frequency conversion processes must be diligently made to mitigate the aforementioned results. Hence, a higher-electrical power DUV laser with the FHG of 1 μm with a superb beam high-quality can be attained and can be useful for obtaining the shorter wavelength DUV lasers such as 193 nm by SFG.
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Inside the scientific and industrial applications, the beam high-quality on the DUV laser can also be an important parameter. Specially, the beam top quality of the DUV laser considerably impacts the laser machining success. The beam good quality of the DUV laser is decided by that of the fundamental laser along with the crystal with the frequency conversion. Not too long ago, a superior-energy DUV laser (>10 W) at 258 nm was described with a beam top quality of M2 < one.five, which was created by FHG of the Yb:YAG laser at 1030 nm utilizing the CLBO crystal [thirteen]. This laser would bring about an even better laser machining result in comparison with the preceding DUV lasers with larger sized M2.
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The conversion performance from essential NIR to DUV is from 5% to 36% in accordance with the documented leads to Table one. Rising the conversion performance will lessen the load on the design and setup of the elemental laser amplifier as well as the electric powered energy usage. A great beam top quality of the basic laser can even add to more info the increasing from the conversion efficiency along with the appropriate electrical power intensity in the NIR and inexperienced laser while in the SHG and FHG approach, respectively. The very best conversion efficiencies from NIR to eco-friendly and green to DUV laser by usage of CLBO crystal are 70% and all over 50%, respectively [twelve], which corresponds to your conversion effectiveness of 35% from essential to DUV.
The development with the 193-nm laser was demonstrated by phases of SFG. In order to scale the DUV laser energy effectively, a different concept on the 193-nm DUV laser technology is introduced depending on the diamond Raman laser.