نتایج جستجو برای: photon polarisation
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The sensitivity of Magnetic Resonance Imaging (MRI) depends strongly on nuclear spin polarisation and, motivated by this observation, dynamical nuclear spin polarisation has recently been applied to enhance MRI protocols (Kurhanewicz, J., et al., Neoplasia 13, 81 (2011)). Nuclear spins associated with the C carbon isotope (nuclear spin I = 1/2) in diamond possess uniquely long spin lattice rela...
We report on a comparative study of the low temperature emission and polarisation properties of InGaN/GaN quantum wells grown on nonpolar ([Formula: see text]) a-plane and ([Formula: see text]) m-plane free-standing bulk GaN substrates where the In content varied from 0.14 to 0.28 in the m-plane series and 0.08 to 0.21 for the a-plane series. The low temperature photoluminescence spectra from b...
Les plans de symtrie sont souvent identifis par lÕexistence dÕune polarisation pure perpendiculaire ces plans. Cependant, ce type de polarisation peut apparatre sans que le plan soit un plan de symtrie. Les plans qui prsentent une polarisation pure suivant leurs normales sont appels Ç plans de dcouplage È, car le systme de trois quations linaires couples par les cosinus directeurs ...
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