Recording and reading of information by ultrashort light pulses in optically dense resonant media

O. K. Khasanov; T. V. Smirnova; Olga M. Fedotova; Andrew E. Korolev

doi:10.1117/12.147879

12 July 1993 Recording and reading of information by ultrashort light pulses in optically dense resonant media

O. K. Khasanov, T. V. Smirnova, Olga M. Fedotova, Andrew E. Korolev

Proceedings Volume 1806, Optical Computing; (1993) https://doi.org/10.1117/12.147879
Event: Topical Meeting on Optical Computing, 1992, Minsk, Belarus

Abstract

Nonstationary energy exchange between reading pulse and reconstructed waves is analyzed as a function of their energy and spectral characteristics, as well as of their small-scale instability. It is shown that for small values of spatial frequencies, (kappa) ₁, in transverse structure of object wave, phase-locking of reconstructed waves is observed which stabilizes the energy exchange. At the same time the efficiency of wavefront reconstruction is substantially influenced by the instability of the reading pulse with respect to small-scale perturbations of its transverse structure. With increasing (kappa) ₁ the above process depends also on the effect of phase accumulation. In optically dense media the suppression of instability is not observed, but there are special conditions defined by the value and sign of detuning of reference pulse carrier frequency from resonance, under which this instability grows slowly.

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O. K. Khasanov, T. V. Smirnova, Olga M. Fedotova, and Andrew E. Korolev "Recording and reading of information by ultrashort light pulses in optically dense resonant media", Proc. SPIE 1806, Optical Computing, (12 July 1993); https://doi.org/10.1117/12.147879

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