Digital metamaterials for single pixel imaging in the Far Infrared

Single pixel cameras are useful imaging devices where it is difficult or infeasible to fashion focal plan arrays. For example in the Far Infrared (FIR) - and longer wavelength ranges - it is difficult to perform imaging by conventional detector arrays, owing to the cost and size of such an array. The typical single pixel camera uses an optical arrangement that forms a conjugate image plane. A spatial light modulator (SLM) is placed in the conjugate image plane and used to sample various portions of the image. The spatially modulated light emerging from the SLM is then sent to a single detector where the light is condensed with suitable optics for detection.