Abstract: An integrated spectral sensing system includes a spectral engine comprising an optical filter assembly bonded to an energy sensitive array. The optical filter assembly and energy sensitive array collectively configured to sense energy transmitted through the optical filter assembly and to generate data based on the sensed energy. An energy source generates energy for impingement upon the spectral engine. A sample interface has a chamber for containing a sample, sized and configured to match the size and configuration of the spectral engine and the energy source. The sample interface is disposed between the spectral engine and the energy source, and configured so that energy from the energy source passes through the sample and impinges upon the spectral engine. Data generated by the energy sensitive array is collected, manipulated, and stored. The collected data is communicated.