Single-pixel ghost microscopy based on compressed sensing and complementary modulation

Abstract

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.

10 pages, 5 figures

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• Fragment-synthesis-based multiparty cryptographic key distribution over a public network
• Formation mechanism of correspondence imaging with thermal light
• Cryptographic key distribution over a public network via variance-based watermarking in compressive measurements
• Unified probability explanation for ghost imaging with thermal light
• Table-top X-ray Ghost Imaging with Ultra-Low Radiation
• Fermionic ghost imaging
• Secondary complementary balancing compressive imaging with a free-space balanced amplified photodetector
• All-optical naked-eye ghost imaging