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Optics Letters

Optics Letters


  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 2 — Jan. 15, 2014
  • pp: 240–242

Image cloning beyond diffraction based on coherent population trapping in a hot rubidium vapor

Dong-Sheng Ding, Zhi-Yuan Zhou, and Bao-Sen Shi  »View Author Affiliations

Optics Letters, Vol. 39, Issue 2, pp. 240-242 (2014)

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Following recent theoretical predictions, we report on an experimental realization of image cloning beyond usual diffraction, through the coherent population trapping (CPT) effect in a hot rubidium vapor. In our experiment, an alphabet letter image was transferred from a coupling field to a probe field, based on the CPT effect. Furthermore, we demonstrate that the cloned probe field carrying the image is transmitted without the usual diffraction. To our best knowledge, this is the first experimental report about image cloning beyond diffraction. We believe this mechanism, based on CPT, has definite and important applications in image metrology, image processing, and biomedical imaging.

© 2014 Optical Society of America

OCIS Codes
(190.4380) Nonlinear optics : Nonlinear optics, four-wave mixing
(190.4223) Nonlinear optics : Nonlinear wave mixing

ToC Category:
Diffraction and Gratings

Original Manuscript: November 1, 2013
Revised Manuscript: November 29, 2013
Manuscript Accepted: December 2, 2013
Published: January 6, 2014

Dong-Sheng Ding, Zhi-Yuan Zhou, and Bao-Sen Shi, "Image cloning beyond diffraction based on coherent population trapping in a hot rubidium vapor," Opt. Lett. 39, 240-242 (2014)

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