Panchromatic emulsion is a type of black-and-white photographic emulsion that is sensitive to all wavelengths of visible light.
By extension, a panchromatic sensor is an image sensor sensitive to the whole visible spectrum.
A panchromatic image is the resulting picture.
Image: 15 Hawker Tornado HG641 (15833937541)
Cyanines, also referred to as tetramethylindo(di)-carbocyanines are a synthetic dye family belonging to the polymethine group. Although the name derives etymologically from terms for shades of blue, the cyanine family covers the electromagnetic spectrum from near IR to UV.
A cyanobacterium stained green with cyanine dye