Stimulated photon echo in magnetic field: research for optical memory

Shape correlation and magnetic field control of stimulated photon echo (SPE) are investigated as basic properties useful for optical data storage and treatment. The SPE polarization was investigated in ytterbium vapour at the intercombination transition (6s6p) 3P1 → (6s2) 1S0 for the first time in a...

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Bibliographic Details
Published in:Laser physics letters 2005-06, Vol.2 (6), p.309-313
Main Authors: Rubtsova, N. N., Ishchenko, V. N., Khvorostov, E. B., Kochubei, S. A., Yevseyev, I. V.
Format: Article
Language:English
Subjects:
non-Faraday rotation
optical memory
stimulated photon echo
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Summary:Shape correlation and magnetic field control of stimulated photon echo (SPE) are investigated as basic properties useful for optical data storage and treatment. The SPE polarization was investigated in ytterbium vapour at the intercombination transition (6s6p) 3P1 → (6s2) 1S0 for the first time in a wide range of longitudinal magnetic field strength. SPE was generated by three resonant laser pulses of identical linear polarization and wave vectors directed symmetrically at small angles to the axis of cylindric vapour cell. SPE polarization is close to linear one in zero magnetic field. As magnetic field increases, the SPE polarization acquires ellipticity with the ellipse axis rotated around magnetic field vector. Components of SPE polarization show oscillations versus magnetic field with higher contrast of the oscillations in the weak field. (© 2005 by Astro, Ltd. Published exclusively by WILEY‐VCH Verlag GmbH & Co. KGaA)
ISSN:1612-2011
1612-202X
DOI:10.1002/lapl.200510003