New Step by Step Map For CLBO Crystal
New Step by Step Map For CLBO Crystal
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On this paper, The brand new lapping slurry and sharpening slurry are released. As well as the deliquescence diploma of CLBO is fallen to lowest. A fresh Operating technological innovation is additionally adopted. After rough sprucing, the concentration of extremely-precision polishing slurry is amplified appropriately. So does the extremely-precision sharpening pace, along with the wiping speed is quicker compared to the deliquescence speed. The CLBO crystal area roughness can reach 1nm and retain the area excellent very well. Entry by means of your institution
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In accordance with the proof-of-principle experiment, the conversion efficiency of 23% implied the opportunity of attaining substantial-ability at the next Stokes wavelength with the Raman laser. If the pump laser of 1078 nm might be obtained at the typical electrical power of 50 W, the output electric power of its 2nd Stokes wavelength at 1512 nm may very well be much more than ten W. The look of the Raman laser cavity ought to be optimized to be able to steer clear of the injury of the M1 and diamond area.
The main element challenge of ultraviolet coherent mild supply mainly focuses on the development of nonlinear optical frequency conversion crystal in ultraviolet band. The nonlinear optical crystal is amongst the problems for frequency transformation, so the growth, measurement, damage resistance, conversion efficiency and allowable parameter range of nonlinear optical crystal are required A growing number of.
Conversely, the beam good quality of this higher electricity DUV laser would turn out to be even worse due to a lot more really serious thermal and nonlinear effects. Consequently, the frequency conversion procedures need to be cautiously created to mitigate the aforementioned outcomes. Thus, a large-electric power DUV laser within the FHG of one μm with a great beam top quality could possibly be acquired and will be advantageous for obtaining the shorter wavelength DUV lasers such as 193 nm by SFG.
LBO can be a great nonlinear crystal which is usually placed on the SHG from the NIR on the environmentally friendly. The DUV laser is generally understood by two stages of SFG inside the LBO crystals considering the fact that there isn't any section-matching angle for LBO to transform the environmentally friendly laser at 515 nm or 532 nm to the DUV instantly by SHG [sixteen]. Recently, the NSBBF crystal has also revealed its potential to acquire a large conversion effectiveness from 532 nm to 266 nm. The walk-off angle and deff from the NSBBF are Virtually much like Individuals of CLBO [17].
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Furthermore, combining the stable-state laser with other nonlinear approach such as stimulated Raman scattering, NIR lasers may be achieved at new wavelengths with large ability and higher beam good quality, which was examined via the evidence-of-principle experiment. This Raman laser scheme gives a brand new path to the higher-electricity DUV laser, especially at the wavelength of 193 nm.
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The conversion performance from basic NIR to DUV is from five% to 36% according to the claimed ends in Desk 1. Rising the conversion efficiency will decrease the stress on the design and set up of the elemental laser amplifier plus the electric powered electricity intake. A great beam high-quality of the fundamental laser may even add towards the rising of your conversion efficiency and the right energy intensity in the NIR and inexperienced laser click here from the SHG and FHG system, respectively. The best conversion efficiencies from NIR to environmentally friendly and environmentally friendly to DUV laser by usage of CLBO crystal are 70% and all-around fifty%, respectively [12], which corresponds for the conversion effectiveness of 35% from fundamental to DUV.
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