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Optics Letters

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  • Vol. 24, Iss. 23 — Dec. 1, 1999
  • pp: 1753–1755

Demonstration of partial erasing of picosecond temporal optical data by use of accumulated photon echoes

Ryuzi Yano and Naoshi Uesugi  »View Author Affiliations


Optics Letters, Vol. 24, Issue 23, pp. 1753-1755 (1999)
http://dx.doi.org/10.1364/OL.24.001753


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Abstract

We demonstrated partial erasing of temporal optical data on a picosecond time scale by use of accumulated photon echoes. In a photon-echo memory the temporal data at time τ are stored as a frequency grating of period 1/τ in the absorption spectrum of a material. Partial erasing of the temporal data is achieved by irradiation of the material with a pulse pair at time separation τ , but the phase of one of the pulses is shifted 180°. This process does not produce a frequency grating, and no echo is emitted. The experiment was performed with a dye-doped polymer film. The 180° phase shift was obtained by use of a half-wave plate.

© 1999 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(210.0210) Optical data storage : Optical data storage
(320.5390) Ultrafast optics : Picosecond phenomena

Citation
Ryuzi Yano and Naoshi Uesugi, "Demonstration of partial erasing of picosecond temporal optical data by use of accumulated photon echoes," Opt. Lett. 24, 1753-1755 (1999)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-24-23-1753


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