Single-shot decoherence polarization gated imaging through turbid media

Yuhu Ren; Jimo Jian; Wenjiang Tan; Jing Wang; Tao Chen; Haikun Zhang; Wei Xia

doi:10.1063/5.0152654

Single-shot decoherence polarization gated imaging through turbid media

Rev Sci Instrum. 2023 Jul 1;94(7):073706. doi: 10.1063/5.0152654.

Authors

Yuhu Ren¹, Jimo Jian², Wenjiang Tan³, Jing Wang¹, Tao Chen¹, Haikun Zhang¹, Wei Xia¹

Affiliations

¹ School of Physics and Technology, University of Jinan, Shandong, Jinan 250022, China.
² Qilu Hospital of Shandong University, Shandong, Jinan 250012, China.
³ Key Laboratory for Physical Electronics and Devices of the Ministry of Education & Shaanxi Key Lab of Information Photonic Technique, School of Electronics and Information Engineering, Xi'an Jiaotong University, Xianning-xilu 28, Xi'an 710049, China.

PMID: 37486200
DOI: 10.1063/5.0152654

Abstract

We propose a method for imaging through a turbid medium by using a single-shot decoherence polarization gate (DPG). The DPG is made up of a polarizer, an analyzer, and a weakly scattering medium. Contrary to intuition, we discover that the preferential utilization of sparsely scattered photons by introducing weakly scattering mediums can lead to better image quality. The experimental results show that the visibilities of the images acquired from the DPG imaging method are obviously improved. The contrast of the bar can be increased by 50% by the DPG imaging technique. Furthermore, we study the effect of the volume concentration of the weakly scattering medium on the speckle suppression and the enhancement of the visibilities of the images. The variances of the contrasts of the image show that there exists an optimum optical depth (∼0.8) of the weakly scattering medium for DPG imaging through a specific turbid medium.