Image Storage in Hot Vapors

Abstract

We theoretically investigate image propagation and storage in hot atomic vapor. A $4f$ system is adopted for imaging and an atomic vapor cell is placed over the transform plane. The Fraunhofer diffraction pattern of an object in the object plane can thus be transformed into atomic Raman coherence according to the idea of ``light storage''. We investigate how the stored diffraction pattern evolves under diffusion. Our result indicates, under appropriate conditions, that an image can be reconstructed with high fidelity. The main reason for this procedure to work is the fact that diffusion of opposite-phase components of the diffraction pattern interfere destructively.

11 pages, 3 figures

References in corpus (9)

• Storage of light in atomic vapor
• Dark-State Polaritons in Electromagnetically Induced Transparency
• Quantum memory for photons: I. Dark state polaritons
• Stationary pulses of light in an atomic medium
• Diffusion-induced Ramsey narrowing
• All-Optical Delay of Images using Slow Light
• Measurement of Dicke Narrowing in Electromagnetically Induced Transparency
• Theory of Dicke narrowing in coherent population trapping
• Diffusion induced decoherence of stored optical vortices

Cited by in corpus (10)

• Storing images in warm atomic vapor
• Collapses and revivals of stored orbital angular momentum of light in a cold atomic ensemble
• Spatial mode storage in a gradient echo memory
• Temporally multiplexed storage of images in a Gradient Echo Memory
• Coherent Diffusion of Polaritons in Atomic Media
• Light storage based on four-wave mixing and electromagnetically induced transparency in cold atoms
• Diffusion induced decoherence of stored optical vortices
• Self-Similar Modes of Coherent Diffusion
• Spatial-domain interactions between ultra-weak optical beams
• Synchronized resistance to inhomogeneous magnetic field-induced dephasing of an image stored in a cold atomic ensemble