Storage and retrieval of ghost images in hot atomic vapor

Young Wook Cho, Joo Eon Oh, Yoon Ho Kim

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)


Ghost imaging is an imaging technique in which the image of an object is revealed only in the correlation measurement between two beams of light, whereas the individual measurements contain no imaging information. Here, we experimentally demonstrate storage and retrieval of ghost images in hot atomic rubidium vapor. Since ghost imaging requires (quantum or classical) multimode spatial correlation between two beams of light, our experiment shows that the spatially multimode correlation, a second-order correlation property of light, can indeed be preserved during the storage-retrieval process. Our work, thus, opens up new possibilities for quantum and classical two-photon imaging, all-optical image processing, and quantum communication.

Original languageEnglish
Pages (from-to)5809-5816
Number of pages8
JournalOptics Express
Issue number5
Publication statusPublished - 2012 Feb 27

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics


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