High-Resolution Spectral Volume Sampling

摘要

For high-resolution spectral volume sampling, a band-pass filter spectrally filters electromagnetic radiation from a scene to wavelengths within a specified wavelength range. A slit array is located at an image of the scene and includes a plurality of slits arranged in parallel. Each slit has a specified width and a specified spacing between slits. Each slit further transmits the electromagnetic radiation. A dispersion device disperses the transmitted electromagnetic radiation from the slit array with a specified dispersion while focusing the transmitted electromagnetic radiation onto a detector array so that each wavelength of electromagnetic radiation from each slit is focused as a unique, non-overlapping line on the detector array.