A Strategy for Improving the Quality of Ghost Imaging

Autor: Xin Liu, Su Bo, Zhiyuan Ye, Panghe Qiu, Jing Ding
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: International Journal of Optics, Vol 2020 (2020)
Druh dokumentu: article
ISSN: 1687-9384
1687-9392
DOI: 10.1155/2020/9703475
Popis: A new method is proposed to improve the signal-to-noise ratio (SNR) of regions of interest (ROIs) in a ghost imaging (GI) system with uneven speckle illumination. The imaging results in a GI system can be distorted when there is an uneven distribution of light. In this study, three thin-film polarizers are used to create illumination patterns in uneven light intensity distribution. In particular, the polarizer set is loaded on the object arm only, that is, the original uniformly distributed light field is still acquired by the reference arm. This small change in the light path eliminates the distortion caused by uneven illumination while increasing the SNR of the ROI. This strategy has been confirmed in principle and through simulation and experiments.
Databáze: Directory of Open Access Journals
Externí odkaz: