摘要 : Recent studies of singularities in scalar wave fields in Young's classic experiment are extended to electro-magnetic fields diffracted by an N-pinhole interferometer. Linearly polarized fields whose direction of polar-ization may ... 展开 Recent studies of singularities in scalar wave fields in Young's classic experiment are extended to electro-magnetic fields diffracted by an N-pinhole interferometer. Linearly polarized fields whose direction of polar-ization may be different at each pinhole are examined. It is shown that for two pinholes, only surfaces of linearpolarization are created. For N larger than two, a rich structure of polarization singularities is found even whenthe location of the pinholes is arbitrary. In addition, there can be regions where the spectral density of the fieldis zero. 收起