  An experiment demonstrating single-pixel single-arm complementary compressive
microscopic ghost imaging based on a digital micromirror device (DMD) has been
performed. To solve the difficulty of projecting speckles or modulated light
patterns onto tiny biological objects, we instead focus the microscopic image
onto the DMD. With this system, we have successfully obtained a magnified image
of micron-sized objects illuminated by the microscope's own incandescent lamp.
The image quality of our scheme is more than an order of magnitude better than
that obtained by conventional compressed sensing with the same total sampling
rate, and moreover, the system is robust against intensity instabilities of the
light source and may be used under very weak light conditions. Since only one
reflection direction of the DMD is used, the other reflection arm is left open
for future infrared light sampling. This represents a big step forward toward
the practical application of compressive microscopic ghost imaging in the
biological and material science fields.
