Les plans de symŽtrie sont souvent identifiŽs par lÕexistence dÕune polarisation pure perpendiculaire ˆ ces plans. Cependant, ce type de polarisation peut appara”tre sans que le plan soit un plan de symŽtrie. Les plans qui prŽsentent une polarisation pure suivant leurs normales sont appelŽs Ç plans de dŽcouplage È, car le systme de trois Žquations linŽaires couplŽes par les cosinus directeurs ...

Liquid hydrocarbons are often modelled with fixed, symmetric, atom-centred charge distributions and Lennard-Jones interaction potentials that reproduce many properties of the bulk liquid. While useful for a wide variety applications, such models cannot capture dielectric effects important in solvation, self-assembly, reactivity. The constants hydrocarbons, as methane ethane, physically arise fr...

The four polarisation method is adopted for measurement of molecular orientation in dielectric nanolayers metal-insulator-metal (MIM) metamaterials composed gold nanodisks on polyimide and films. Hyperspectral mapping at the chemical finger printing spectral range 4–20 ??m was carried out MIM patterns 1–2.5 period (sub-wavelength). Overlay images taken 0,?4,?2,3?4 angles subsequent baseline com...

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