研究目的
Investigating the relation between the angular position and helicity of points of circular polarization (C points) in the far field of elliptically polarized dipoles and the dipole moment, and introducing an optical weak measurement approach to reveal the angular separation and helicity of these C points.
研究成果
The study establishes a link between the elliptical polarization of a dipole emitter and its far-field C points. It demonstrates that projecting the far field onto a spatially varying postselected polarization state can reveal the angular separation and helicities of C points, enabling the experimental retrieval of complex dipole moments.
研究不足
The technique requires precise control over the polarization state and is sensitive to the positioning of the dipole emitter. The visibility of C points for highly eccentric dipoles is low, requiring optimization of the postselected polarization state.