Pulse propagation in a medium optically dressed by a phase-modulated field

Abstract

Pulse propagation is studied in an EIT medium with the control field having a periodically varying phase (chirp). Based both on numerical calculations and on an approximate approach neglecting absorption and nonadiabatic effects, it is shown that transparency occurs for probe pulses having a sufficiently narrow envelope and an appropriately suited chirp. For other chirped pulses the evolution of their spectra along a sample is studied. Using a projection method one can divide a pulse into a part for which the medium is transparent and a rest for which it is opaque.

arXiv comment8 pages, 9 figures

References in corpus (6)

• Storage of light in atomic vapor
• Dark-State Polaritons in Electromagnetically Induced Transparency
• A Knob for Changing Light Propagation from Subluminal to Superluminal
• Electromagnetically induced transparency controlled by a microwave field
• Light propagation through closed-loop atomic media beyond the multiphoton resonance condition
• Electromagnetically-induced transparency and light storing of a pair of pulses