A device for detecting the intensity distribution of components of the electromagnetic field in radiation beams, comprising - a high-resolution two-dimensional intensity sensor array , - a field vector detector array consisting of different regions of detector structures with at least three individual detector structures for two individual transverse field vector components E x , E y and one longitudinal field vector component E z , wherein - the detector structures are each assigned as individual microstructures to at least one sensor element of the two-dimensional intensity sensor array and are arranged in front of these in the incident beam , characterised in that - the detector structures are metallic sheath-shaped tips with different apexes formed as nanostructures in such a way that, in order to use an electromagnetic field distribution in the incident beam for polarisation selection according to individual transverse and longitudinal field vector components E x , E y , E z , due to localised plasmon resonance (LPR) of the respective nanostructure of the detector structures and localised surface plasmons (LSP) excited by LPR, and to transmit it, on the basis of the progression of surface plasmon polaritons (SPP) and photonic waveguiding (WGM), to the associated sensor elements of the intensity sensor array , where localised photon beams can be recorded as intensity signals of the field vector components E x , E y , E z , wherein the detector structures for the individual longitudinal field vector components E z are configured as conical apertureless metallic tips and the detector structures for the individual transverse field vector components E x , E y are configured as differently orientated metallic tips (4; 41, 42) with an aperture at the apex , wherein a detector structure for the transverse field vector component E x and a detector structure for the transverse field vector component E y are arranged axially rotated by 90° relative to one another. - a high-resolution two-dimensional intensity sensor array , - a field vector detector array consisting of different regions of detector structures with at least three individual detector structures for two individual transverse field vector components E x , E y and one longitudinal field vector component E z , wherein - the detector structures are each assigned as individual microstructures to at least one sensor element of the two-dimensional intensity sensor array and are arranged in front of these in the incident beam , characterised in that - the detector structures are metallic sheath-shaped tips with different apexes formed as nanostructures in such a way that, in order to use an electromagnetic field distribution in the incident beam for polarisation selection according to individual transverse and longitudinal field vector components E x , E y , E z , due to localised plasmon resonance (LPR) of the respective nanostructure of the detector structures and localised surface plasmons (LSP) excited by LPR, and to transmit it, on the basis of the progression of surface plasmon polaritons (SPP) and photonic waveguiding (WGM), to the associated sensor elements of the intensity sensor array , where localised photon beams can be recorded as intensity signals of the field vector components E x , E y , E z , wherein the detector structures for the individual longitudinal field vector components E z are configured as conical apertureless metallic tips and the detector structures for the individual transverse field vector components E x , E y are configured as differently orientated metallic tips (4; 41, 42) with an aperture at the apex , wherein a detector structure for the transverse field vector component E x and a detector structure for the transverse field vector component E y are arranged axially rotated by 90° relative to one another. <EOS>