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991.
Improvement in the calculation of anti-Stokes energy transfer and experimental justification based on Er0.01YbxY1 - 0.01 - xVO4 crystal 下载免费PDF全文
The improvement on the calculation of anti-Stokes energy transfer rate is studied in the present work. The additional proportion coefficient between Stokes and anti-Stokes light intensities of quantum Raman scattering theory as compared with the classical Raman theory is introduced to successfully describe the anti-Stokes energy transfer. The theoretical formula for the improvement on the calculation of anti-Stokes energy transfer rate is derived for the first time in this study. The correctness of introducing coefficient exp{△E/kT } from well-known Raman scatter theory is demonstrated also. Moreover, the experimental lifetime measurement in Er0.01YbxY1-0.01-xVO4 crystal is performed to justify the validity of our important improvement in the original phonon-assisted energy transfer theory for the first time. 相似文献
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É. Falize A. RavasioB. Loupias A. DizièreC.D. Gregory C. MichautC. Busschaert C. CavetM. Koenig 《High Energy Density Physics》2012,8(1):1-4
In this paper we present the experimental simulation of the accretion column in magnetic cataclysmic variables using high-power lasers. With an appropriate target and adapted diagnostics, the dynamics and the main physical properties of laboratory accreting plasma have been characterised. The results obtained validate the experimental design and prove the formation of a reverse shock which compresses and heats the accreting plasma. The data are compared to 2D radiation hydrodynamic simulations, confirming the experimental scenario. 相似文献
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Jinhan Yao Chaoqi Shen Pinjie Zhang Duncan H. Gregory Lianbang Wang 《Journal of Physics and Chemistry of Solids》2012,73(11):1390-1395
By applying the annealing step during the solid-state synthesis, well-crystallized spinel LiMn2O4 with high phase purity was fabricated. The sensitive effect of heating procedure on the structural and electrochemical properties of LiMn2O4 product was investigated. It was found that preheat-treatment-calcinations-annealing process can effectively eliminate the impurity phase. The post-annealing process also leads to a better crystalline and suitable strain for the LiMn2O4 product, which contributes to the enhanced cycling performance. 相似文献