  We present a stochastic analog spatial light modulator designed for
compressive imaging applications. We rely on the unpredictable nature of
multi-particle collisions to provide randomization for the particle location.
We demonstrate this concept in an optical imaging system using a single-pixel
camera. This design can be applied to imaging or spectroscopic systems in which
no analog to optical spatial light modulators currently exist or in non-optical
lensless imaging systems.
