How Much You Need To Expect You'll Pay For A Good CLBO Crystal
How Much You Need To Expect You'll Pay For A Good CLBO Crystal
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All-stable-state ultraviolet lasers are actually extensively used in the fields of mechanical flaw detection, lithography, micromachining and drugs for the benefits of smaller quantity, prolonged daily life, superior efficiency, good beam high-quality, huge tuning and slim spectral line, and so on. Utilizing large energy near-infrared coherent gentle source as the basic frequency source dependant on nonlinear tuning technological know-how, creating ultraviolet coherent radiation by multistage frequency conversion is regarded as a crucial way to produce the ultraviolet coherent light-weight source.
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As an illustration, 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, making use of large damage threshold coatings for M1 and diamond would also Enhance the output energy with none damages. Then, the NIR laser in the 2nd Stokes wavelength can be large more than enough, and also its superior beam top quality, to crank out the final DUV laser at 193 nm which has a large regular power.
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During the scientific and industrial purposes, the beam high-quality of your DUV laser is also an important parameter. Particularly, the beam quality of your DUV laser considerably influences the laser machining outcomes. The beam quality with the DUV laser is set by that of the elemental laser along with the crystal for your frequency conversion. A short while ago, a higher-ability DUV laser (>10 W) at 258 nm was documented having a beam high quality of M2 < one.five, which was generated by FHG of a Yb:YAG laser at 1030 nm using the CLBO crystal [13]. This laser would result in an even better laser machining outcome when compared to the prior DUV lasers with greater M2.
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The beam profile revealed in Figure 7b demonstrated a superb beam high-quality as among the merits of Raman laser, which would be useful to crank out a 193-nm DUV laser with a top quality beam.
The conversion effectiveness from essential NIR to DUV is from five% to 36% based on the claimed leads to Table one. Increasing the conversion effectiveness will lessen the burden on the look and set up of the fundamental laser amplifier and also the electric electric power consumption. An excellent beam high-quality of the fundamental laser may even lead into the expanding in the conversion effectiveness and the right power intensity from the NIR and eco-friendly laser from the SHG and FHG system, respectively. The best conversion efficiencies from NIR to green and green to DUV laser by use of CLBO crystal are 70% and around fifty%, respectively [twelve], which corresponds on the conversion effectiveness of 35% from fundamental to DUV.
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