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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 5 — Feb. 27, 2012
  • pp: 5809–5816

Storage and retrieval of ghost images in hot atomic vapor

Young-Wook Cho, Joo-Eon Oh, and Yoon-Ho Kim  »View Author Affiliations

Optics Express, Vol. 20, Issue 5, pp. 5809-5816 (2012)

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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.

© 2012 OSA

OCIS Codes
(030.1640) Coherence and statistical optics : Coherence
(270.1670) Quantum optics : Coherent optical effects
(270.5585) Quantum optics : Quantum information and processing

ToC Category:
Quantum Optics

Original Manuscript: January 5, 2012
Revised Manuscript: February 12, 2012
Manuscript Accepted: February 13, 2012
Published: February 24, 2012

Young-Wook Cho, Joo-Eon Oh, and Yoon-Ho Kim, "Storage and retrieval of ghost images in hot atomic vapor," Opt. Express 20, 5809-5816 (2012)

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  30. A delay/pulse generator (SRS, DG535) provides the synchronization pulses for the CCD (JAI, CM-030-GE), the digitizer (NI, PCI-5114), and the two acousto-optic modulators used in the experiment. Each “measurement” is then repeated at 1.5 Hz.
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