We present a method for realizing snapshot, depth-resolved material identification using only a single, energysensitive pixel. To achieve this result, we employ a coded aperture with subpixel features to modulate the energy spectrum of coherently scattered photons and recover the object properties using an iterative inversion algorithm based on compressed sensing theory. We demonstrate high-fidelity object estimation at x-ray wavelengths for a variety of compression ratios exceeding unity.
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics