Sensitivity of ghost imaging compared to conventional imaging[Invited]

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外文摘要：Ghost imaging has been attracting more and more attention,which provides a way to obtain images of objects with only a single-pixel detector.Considering possible applications,it becomes urgent to clarify the sensitivity of ghost imaging.Due to the unique characteristics of single-pixel detectors,which collect photons without distributing them to multiple pixels,often outperforming array sensors,ghost imaging is believed to be more sensitive than conventional imaging.However,a systematic analysis on the sensitivity of ghost imaging is yet to be completed.In this paper,we present a method for quantitatively assessing the sensitivity of ghost imaging.A detailed comparison is provided between ghost imaging and conventional imaging,taking into account the particle nature of photons and the noise of detection.With the settings of the two imaging methods being the same to the most extent,the minimal required number of detected photons for images of a certain quality is considered.For the thermal source version,ghost imaging demonstrates enhanced sensitivity under prac-tical situations,with noise considered.Employing an entangled source,ghost imaging surpasses conventional imaging techniques in terms of sensitivity obviously.In one word,ghost imaging promises higher sensitivity at low photon flux and noisy situations.

外文关键词：

sensitivityghost imagingconventional imaging

作者：

杜隆坤、孙帅、徐耀坤、林惠祖、冷宁益、刘伟涛

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作者单位：

Institute for Quantum Science and Technology,College of Science,National University of Defense Technology,Changsha 410073,China

Interdisciplinary Center of Quantum Information,National University of Defense Technology,Changsha 410073,China

Hunan Key Laboratory of Mechanism and Technology of Quantum Information,Changsha 410073,China

College of Electronic Science and Technology,National University of Defense Technology,Changsha 410073,China

Department of Mathematics,College of Science,National University of Defense Technology,Changsha 410073,China

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出版年：

2024

DOI：

10.3788/COL202422.060004

中国光学快报(英文版)

中国光学学会中国科学院上海光学精密机械研究所

中国光学快报(英文版)

CSTPCD

影响因子：1.305

ISSN：1671-7694

年,卷(期)：2024.22(6)