P11 - Polarization and Spectral Filter Arrays Based on Sub-Wavelength Structures in CMOS

St. Junger, W. Tschekalinskij, N. Verwaal & N. Weber
In order to achieve polarization or spectral selectivity, conventional detectors and detector arrays require additional optical elements. Polarization filters, prisms, or beam splitters are used for polarization sensing, color filters or dispersive elements like diffraction gratings for color and multispectral sensors. Especially a pixelwise alternating filter array for image sensors is difficult to fabricate and align and only standard filter arrangements like the red/green/blue filter mosaic of the well known Bayer pattern for color image...