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Digital spiral object identification using random light

Yang, Zhe and Magaña-Loaiza, Omar S. and Mirhosseini, Mohammad and Zhou, Yiyu and Gao, Boshen and Gao, Lu and Hashemi Rafsanjani, Seyed Mohammad and Long, Gui-Lu and Boyd, Robert W. (2017) Digital spiral object identification using random light. Light: Science & Applications, 6 (7). Art. No. e17013. ISSN 2047-7538. PMCID PMC6062229. doi:10.1038/lsa.2017.13.

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Photons that are entangled or correlated in orbital angular momentum have been extensively used for remote sensing, object identification and imaging. It has recently been demonstrated that intensity fluctuations give rise to the formation of correlations in the orbital angular momentum components and angular positions of random light. Here we demonstrate that the spatial signatures and phase information of an object with rotational symmetries can be identified using classical orbital angular momentum correlations in random light. The Fourier components imprinted in the digital spiral spectrum of the object, as measured through intensity correlations, unveil its spatial and phase information. Sharing similarities with conventional compressive sensing protocols that exploit sparsity to reduce the number of measurements required to reconstruct a signal, our technique allows sensing of an object with fewer measurements than other schemes that use pixel-by-pixel imaging. One remarkable advantage of our technique is that it does not require the preparation of fragile quantum states of light and operates at both low- and high-light levels. In addition, our technique is robust against environmental noise, a fundamental feature of any realistic scheme for remote sensing.

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URLURL TypeDescription ReadCube access CentralArticle Paper
Gao, Lu0000-0001-7934-847X
Hashemi Rafsanjani, Seyed Mohammad0000-0001-7718-5654
Boyd, Robert W.0000-0002-1234-2265
Additional Information:© The Author(s) 2017. This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit Received 16 October 2016; revised 18 January 2017; accepted 14 February 2017; accepted article preview online 15 February 2017. We gratefully acknowledge Jiapeng Zhao for valuable discussions. We also thank Jiying Jia for revising the manuscript. ZY is thankful for the financial support from the program of the China Scholarship Council (no. 201506210145). LG acknowledges the support from the National Natural Science Foundation of China, no. 11504337. GLL acknowledges the partial support from the Natural Science Foundation of China under Grant nos 11175094 and 91221205, and the National Basic Research Program of China under Grant no. 2015CB921002. GLL is a member of the Center of Atomic and Molecular Nanosciences, Tsinghua University. Author contributions: OSM-L conceived the idea. The experiment was designed by ZY, OSM-L, MM, GL and RWB. The theoretical description of our work was developed by ZY, BG and SMHR. The experiment was performed by ZY, YZ, LG, OSM-L and MM. The data were analyzed by ZY, with help from OSM-L. The project was supervised by GL and RWB. All authors contributed to the discussion of the results and to the writing of the manuscript. The authors declare no conflict of interest.
Funding AgencyGrant Number
China Scholarship Council201506210145
National Natural Science Foundation of China11504337
National Natural Science Foundation of China11175094
National Natural Science Foundation of China91221205
National Basic Research Program of China2015CB921002
Issue or Number:7
PubMed Central ID:PMC6062229
Record Number:CaltechAUTHORS:20190708-151342661
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:96920
Deposited By: George Porter
Deposited On:09 Jul 2019 14:03
Last Modified:16 Nov 2021 17:24

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