Harward University published PhD Thesis "Vertical Silicon Nanowires for Image Sensor Applications" by Hyunsung Park. The thesis proposes to use Si nanowires of different diameter to create color filters. Oval wires can be used as polarization filters.
Silicon Nanowires in Image Sensors
online engineering degree/engineering degree online/online engineering courses/engineering technology online/engineering courses online/engineering technician degree online/online engineering technology/electronic engineering online