In this paper, the new lapping slurry and sharpening slurry are released. And the deliquescence degree of CLBO is fallen to most affordable. A different Operating technology is usually adopted. After tough polishing, the concentration of ultra-precision sprucing slurry is increased correctly. So does the ultra-precision polishing speed, and also the wiping velocity is faster compared to deliquescence speed. The CLBO crystal surface roughness can achieve 1nm and continue to keep the floor high-quality effectively. Accessibility through your institution
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According to the proof-of-theory experiment, the conversion efficiency of 23% implied the possibility of obtaining superior-energy at the 2nd Stokes wavelength with the Raman laser. When the pump laser of 1078 nm may be acquired at the common electric power of 50 W, the output energy of its 2nd Stokes wavelength at 1512 nm could possibly be over 10 W. The look with the Raman laser cavity must be optimized so that you can avoid the harm with the M1 and diamond surface.
For example, The existing concave OC could be replaced by a airplane mirror which could mitigate the power density over the floor of M1 along with the diamond. Also, working with high destruction threshold coatings for M1 and diamond would also Increase the output electric power without any damages. Then, the NIR laser at the 2nd Stokes wavelength can be large adequate, in addition to its great beam top quality, to produce the ultimate DUV laser at 193 nm that has a substantial typical ability.
Conversely, the beam good quality of the better electrical power DUV laser would become even worse as a consequence of far more really serious thermal and nonlinear results. For this reason, the frequency conversion procedures ought to be carefully made to mitigate the aforementioned results. Thus, a superior-electricity DUV laser on the FHG of 1 μm with a good beam excellent could possibly be acquired and may be beneficial for getting the shorter wavelength DUV lasers such as 193 nm by SFG.
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The pulse length of the second Stokes gentle was shortened to 5 ns as revealed in Figure click here 7a, a single-shot photo in the oscilloscope, which happens to be a typical phenomenon in Raman laser [forty four] whilst the heart beat duration on the pump laser was ten ns.
Cesium Lithium Borate (CsLiB6O10 or CLBO) is the best non-linear crystal which generates ultraviolet harmonics in the Nd:YAG basic laser wavelength. As a way to improve the harm threshold, low CLBO surface area roughness, by ultra-precision machining, is necessary. Since the CLBO crystal has simple hydroscopic response and micro scratches in machining, extremely-precise machining of your CLBO crystal is often a challenging technical challenge.
The beam profile proven in Figure 7b demonstrated a superb beam high-quality as among the merits of Raman laser, which would be advantageous to generate a 193-nm DUV laser with a high quality beam.
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The development with the 193-nm laser was demonstrated by phases of SFG. So that you can scale the DUV laser electrical power correctly, a fresh thought from the 193-nm DUV laser era is introduced based on the diamond Raman laser.