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Frequency doubling of radiation generated by random distributed feedback (RDFB) Raman fiber laser (RFL) in MgO:PPLN crystal is studied experimentally for the first time. Second harmonic generation (SHG) power is compared for conventional and RDFB RFL configurations. The comparison shows, that higher SHG power (more than 100 mW at 654 nm) is generated with RDFB RFLs.
The use of vegetable powders and oils in the production of sugar cookies, which promotes the vital nutrients needs’ satisfaction for the human body has been scientifically justified on the basis of the conducted experimental studies. Summarizing the results of research and biscuit production in Ukraine and abroad, the authors have developed recipes of sugar cookies (“Dachne” and “Yantarne”) with the...
AbstractThe character of low-infralow-frequency dielectric spectra of ferroelectrics and related materials, their transformation with temperature, electric field and aging time, the temperature dependencies of relaxation times at phase and structural transitions are evidence of their fractality. The analysis of optical microscope research brought to light the fractal features of domain boundaries...
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