Transfer and conversion of images between different wavelengths or polarization has significant applications in optical communication and quantum information processing. We demonstrated the transfer of images based on electromagnetically induced transparency (EIT) in a rubidium vapor cell. In experiments, a 2D image generated by a spatial light modulator is used as a coupling field, and a plane wave served as a signal field. We found that the image carried by coupling field could be transferred to that carried by signal field, and the spatial patterns of transferred image are much better than that of the initial image. It also could be much smaller than that determined by the diffraction limit of the optical system. We also studied the subdiffraction propagation for the transferred image. Our results may have applications in quantum interference lithography and coherent Raman spectroscopy.
© 2014 Optical Society of America
Original Manuscript: January 27, 2014
Revised Manuscript: March 31, 2014
Manuscript Accepted: April 2, 2014
Published: April 28, 2014
Mingtao Cao, Liyun Zhang, Ya Yu, Fengjuan Ye, Dong Wei, Wenge Guo, Shougang Zhang, Hong Gao, and Fuli Li, "Transfer and conversion of images based on EIT in atom vapor," Opt. Lett. 39, 2723-2726 (2014)