Polarization-multiplexing ghost imaging

TL;DR

This paper introduces a polarization-multiplexing ghost imaging technique that captures multiple polarimetric details simultaneously with a single detector, using speckle multiplexing and iterative reconstruction, with applications in object detection and encryption.

Contribution

It presents a novel method for polarization-multiplexing ghost imaging that enables simultaneous acquisition of multiple polarimetric images with a single detector.

Findings

Effective reconstruction of polarimetric images demonstrated.

Successful detection of two different polarized objects.

Encryption of polarimetric information achieved.

Abstract

A novel technique for polarization-multiplexing ghost imaging is proposed to simultaneously obtain multiple polarimetric information by a single detector. Here, polarization-division multiplexing speckles are employed for object illumination. The light reflected from the objects is detected by a single-pixel detector. An iterative reconstruction method is used to restore the fused image containing the different polarimetric information by summing the multiplexed speckles and detected intensities. Next, clear images of the different polarimetric information are recovered by demultiplexing the fused image. The application of this method to the detection of two different polarized objects is presented, and the results clearly demonstrate that the proposed method is effective. An encryption experiment for polarimetric information is also performed by setting the multiplexed speckles' encoding as the keys.