The smart Trick of CLBO Crystal That Nobody is Discussing

The smart Trick of CLBO Crystal That Nobody is Discussing

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All-reliable-condition ultraviolet lasers are actually greatly used in the fields of mechanical flaw detection, lithography, micromachining and medicine for some great benefits of tiny quantity, extended everyday living, high effectiveness, fantastic beam quality, vast tuning and narrow spectral line, etcetera. Utilizing substantial power around-infrared coherent light-weight source as the elemental frequency supply based on nonlinear tuning technology, building ultraviolet coherent radiation by multistage frequency conversion is considered to be a very important way to create the ultraviolet coherent gentle source.

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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 along with the diamond. Also, employing large damage threshold coatings for M1 and diamond would also Enhance the output power with no damages. Then, the NIR laser in the 2nd Stokes wavelength could be superior ample, as well as its excellent beam excellent, to create the final DUV laser at 193 nm having a substantial regular power.

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Within the scientific and industrial programs, the beam high quality from the DUV laser can also be an essential parameter. Especially, the beam quality of your DUV laser considerably impacts the laser machining outcomes. The beam quality of your DUV laser is set by that of the elemental laser along with the crystal for the frequency conversion. A short while ago, a large-electric power DUV laser (>10 W) at 258 nm was reported by using a beam high quality of M2 < 1.five, which was created by FHG of a Yb:YAG laser at 1030 nm using the CLBO crystal [thirteen]. This laser would lead to an improved laser machining result when compared to the previous DUV lasers with greater M2.

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Cesium Lithium Borate (CsLiB6O10 or CLBO) is the most effective non-linear crystal which generates ultraviolet harmonics from the Nd:YAG fundamental laser wavelength. In order to enhance the hurt threshold, minimal CLBO surface area roughness, by ultra-precision machining, is necessary. Since the CLBO crystal has straightforward hydroscopic reaction and micro scratches in machining, extremely-precise machining of your CLBO crystal is often a challenging specialized trouble.

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Its UV absorption edge reaches one hundred eighty nm. The productive nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about twice as substantial as that of KDP. CLBO crystals can be developed through the stoichiometric melt with decreased viscosity.

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