The 2-Minute Rule for CLBO Crystal
The 2-Minute Rule for CLBO Crystal
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For example, The existing concave OC could get replaced by a plane mirror which could mitigate the facility density to the surface of M1 and the diamond. What's more, using superior problems threshold coatings for M1 and diamond would also Increase the output electric power with no damages. Then, the NIR laser in the 2nd Stokes wavelength could be significant ample, as well as its very good beam quality, to create the final DUV laser at 193 nm using a significant typical electricity.
However, the beam high-quality of this larger electricity DUV laser would grow to be even worse as a result of additional serious thermal and nonlinear results. That's why, the frequency conversion processes should be thoroughly designed to mitigate the aforementioned results. So, a high-energy DUV laser on the FHG of 1 μm with an excellent beam top quality may be acquired and may be beneficial for acquiring the shorter wavelength DUV lasers for instance 193 nm by SFG.
Mainly because of the thermal lens influence within the solid-condition lasers, Should the heating management is insufficient, It isn't simple to acquire the stable-condition laser with a superior electricity as well as a high beam excellent at the same time. Not too long ago, with the event of The skinny disk laser and single-crystal fiber (SCF) laser, a substantial-ability laser at the fundamental wavelength (1 μm) were understood with a good beam top quality In spite of a TEM00 method beam [four,24], which might be very good candidates for the basic with the DUV laser generation. A further prospect for the elemental could be the superior-ability fiber laser which could be accomplished by coherent beam mixture with M2 benefit a lot less than 1.
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While in the scientific and industrial apps, the beam excellent of your DUV laser can be an important parameter. Particularly, the beam high-quality with the DUV laser considerably impacts the laser machining outcomes. The beam quality with the DUV laser is determined by that of the elemental laser along with the crystal for the frequency conversion. Recently, a significant-electrical power DUV laser (>ten W) at 258 nm was documented having a beam high-quality of M2 < 1.5, which was created by FHG of a Yb:YAG laser at 1030 nm utilizing the CLBO crystal [13]. This laser would bring on a much better laser machining final result when compared to the prior DUV lasers with much larger M2.
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Cesium Lithium Borate (CsLiB6O10 or CLBO) is the simplest non-linear crystal which generates ultraviolet harmonics on the Nd:YAG elementary laser wavelength. In an effort to increase the hurt threshold, minimal CLBO surface area roughness, by extremely-precision machining, is required. As the CLBO crystal has easy hydroscopic response and micro scratches in machining, ultra-precise machining of your CLBO crystal is usually a tricky specialized issue.
Tunable ultraviolet laser source according to sound-condition dye laser engineering and CsLiB6O10 harmonic era
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The development on the 193-nm laser was demonstrated by phases of SFG. In order to scale the DUV laser ability correctly, a whole new thought in the 193-nm DUV laser technology is presented determined by the diamond Raman laser.