A detector assembly for characterizing electromagnetic energy that comprises a first wavelength range and a second wavelength range and that propagates along a light path, said detector assembly comprising: a first detector array arranged at a first position along said light path, said first detector array including a plurality of photosensitive elements (850, 120, 110, 130, 810) aligned to receive at least some of said electromagnetic energy, said first detector array being configured to selectively absorb a first portion of said first wavelength range of said electromagnetic energy, and to produce therefrom a first set of electrical image data, at least some of said photosensitive elements being at least partially transparent with respect to said electromagnetic energy, to selectively pass a second portion of said first wavelength range of said electromagnetic energy and said second wavelength range of said electromagnetic energy therethrough to continue along said light path; wherein each of said photosensitive elements comprises, in sequence along the light path: a first group of alternating transparent layers, alternating ones of the transparent layers having high refractive index and low refractive index respectively, a first at least partially transparent conductive layer, a photosensitive layer having a non-zero extinction coefficient, said photosensitive layer generating electrical data upon light absorption, a second at least partially transparent conductive layer, and a second group of alternating transparent layers, alternating ones of the transparent layers having high refractive index and low refractive index respectively, and wherein the first and second groups of alternating transparent layers (810, 850) and the transparent conductive layers and the photosensitive layers (110, 120, 130) are arranged such that said photosensitive elements partially absorb electromagnetic energy in said first wavelength range and pass electromagnetic energy in said second wavelength range, said first detector array further including a first support arrangement defining a first support surface that supports the plurality of photosensitive elements of the first detector array, said first support arrangement being at least partially transparent with respect to said electromagnetic energy, such that said plurality of photosensitive elements and said support arrangement allow a) the second portion of said first wavelength range of said electromagnetic energy and b) the second wavelength range of said electromagnetic energy to pass through said detector assembly to continue along said light path. a first detector array arranged at a first position along said light path, said first detector array including a plurality of photosensitive elements (850, 120, 110, 130, 810) aligned to receive at least some of said electromagnetic energy, said first detector array being configured to selectively absorb a first portion of said first wavelength range of said electromagnetic energy, and to produce therefrom a first set of electrical image data, at least some of said photosensitive elements being at least partially transparent with respect to said electromagnetic energy, to selectively pass a second portion of said first wavelength range of said electromagnetic energy and said second wavelength range of said electromagnetic energy therethrough to continue along said light path; wherein each of said photosensitive elements comprises, in sequence along the light path: a first group of alternating transparent layers, alternating ones of the transparent layers having high refractive index and low refractive index respectively, a first at least partially transparent conductive layer, a photosensitive layer having a non-zero extinction coefficient, said photosensitive layer generating electrical data upon light absorption, a second at least partially transparent conductive layer, and a second group of alternating transparent layers, alternating ones of the transparent layers having high refractive index and low refractive index respectively, and a first group of alternating transparent layers, alternating ones of the transparent layers having high refractive index and low refractive index respectively, a first at least partially transparent conductive layer, a photosensitive layer having a non-zero extinction coefficient, said photosensitive layer generating electrical data upon light absorption, a second at least partially transparent conductive layer, and a second group of alternating transparent layers, alternating ones of the transparent layers having high refractive index and low refractive index respectively,