Optical phase information writing and storage in populations of metastable quantum states

G. P. Djotyan, N. Sandor, J. S. Bakos, Zs Sörlei

Research output: Contribution to journalArticle

4 Citations (Scopus)


We propose a scheme for robust writing and storage of optical phase information in populations of metastable states of the atoms with a tripod structure of levels by using frequency-chirped laser pulses. The method provides much longer storage times compared with the schemes based on the collective atomic spin coherences. A negligible excitation of the atom provides immunity to decoherence induced by decay of the excited states. The method is robust against small-to-medium variations in the laser pulse intensity and speed of the chirp and, being insensitive to resonance conditions, it is effective both in homogeneously and inhomogeneously broadened media.

Original languageEnglish
Pages (from-to)1959-1966
Number of pages8
JournalJournal of the Optical Society of America B: Optical Physics
Issue number10
Publication statusPublished - Oct 1 2009


ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Atomic and Molecular Physics, and Optics

Cite this