Optical cloning of arbitrary images beyond the diffraction limits

Abstract

Cloning of arbitrary images encoded onto the spatial profile of a laser beam onto that of a second beam is theoretically investigated. The two fields couple to an atomic lambda system in a coherent population trapping configuration. In particular, the case in which the probe and control fields are of comparable strength is considered. By considering more and more complex structures, we eventually find that our method is suitable to clone arbitrary images, which we demonstrated by a full numerical simulation of the propagation dynamics of both applied fields in the atomic medium, with the three letters "CPT" encoded on the initial control field profile. We find that the cloned structures have feature sizes reduced by about a factor of 2 compared to the initial images, consistent with a recent related experiment.

9 pages, 8 figures

References in corpus (6)

• Nonparaxial Mathieu and Weber accelerating beams
• Coherent Quantum Optical Control with Subwavelength Resolution
• Optical imaging beyond the diffraction limit via dark states
• Elimination of the Diffraction of Arbitrary Images Imprinted on Slow Light
• From Storage and Retrieval of Pulses to Adiabatons
• Tunable nonlinearity in atomic response to a bichromatic field

Cited by in corpus (7)

• Steering, Splitting and Cloning of Optical Beam in a Coherently Driven Raman Gain System
• Image cloning beyond diffraction based on coherent population trapping in a hot Rubidium vapor
• Diffractionless image propagation and frequency conversion via four-wave mixing exploiting the thermal motion of atoms
• Selection and cloning of optical patterns with a cold Rydberg atomic gas
• Enhancement of image resolution beyond the diffraction-limit by interacting dark resonances
• Kerr field induced tunable optical atomic waveguide
• Efficient diffraction control using a tunable active-Raman gain medium