Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Soviet Journal of Quantum Electronics

Accumulated long-lived optical echo and optical memory

В. А. Зуйков, D. F. Gainullin, В. В. Самарцев, M. F. Stel'Makh, M. A. Yufin, Mikhail A. Yakshin

Published Apr 30, 1991• 4 citations
Publisher

Abstract

An investigation was made of the optimal conditions for the generation of signals of an accumulated long-lived optical echo in an LaF 3 :Pr 3+ crystal (due to the 3 H 4 – 3 P 0 resonant transition) with the aim of basing a dynamic optical memory on this echo. The dependences of the intensities of the signals on the number of identical pulse pairs were determined experimentally for the first time and analyzed. An estimate was obtained in the lifetime of a metastable state.

DOI
10.1070/qe1991v021n04abeh003845

Related papers

Multiple readout of long-lived photon echo signals and nuclear relaxation

В. А. Зуйков, А. А. Калачев, L. A. Nefedev +1 more

The relaxation decay of long-lived stimulated photon echo signals in a Pr 3+ :LaF 3 crystal was found to be independent of the number of readout pulses when the area under these pulses was small. A theoretical description of this effect is provided and a good agreement between the theory and experiment is reported.

Quantum Electronics•Mar 31, 1996•1 citation

Photon echo in an atomic frequency comb in a Pr-doped LaF3 crystal

Ахмеджанов Ринат Абдулхаевич, A. A. Bondartsev, Л. А. Гущин +3 more

The possibility of storage of an optical pulse in a memory based on an atomic frequency comb in a Pr 3+ :LaF 3 crystal is demonstrated experimentally. A new method of storage-time control using an external electric field is proposed and experimentally implemented.

Optics and Spectroscopy•Sep 1, 2013•1 citation

Long-lived photon echo in doped nanocrystals

А. А. Калачев, Daria D. Vlasova

The possibility of increase of the information storage time in optical memory devices based on the long-lived photon echo in rare-earth ion doped crystals provided that the latter are nanometer ones is analyzed. Taking into account that in such materials the information storage time is determined by the population lifetimes of hyperfine sublevels of a ground electron state it is possible to increase it due to the modification of phonon density of states in nanocrystals as compared to bulk crystals.

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE•Mar 3, 2008•1 citation

New channel of photon echo signal relaxation in LaF 3 :Pr 3+ crystal

N. I. Znamenskii, Genady S. Katrich, Yu. V. Malyukin +4 more

An experimental investigation was made of the optical absorption spectra corresponding to transitions in the Pr3+ ion in crystalline LaF3 matrices. The investigation was carried out in the temperature range 5 divided by 80 K. An anomalous redistribution of the intensity was observed in the absorption spectrum of a Pr3+:LaF3 crystal. This redistribution did not agree with the hypothesis of the Boltzman population of the states in discrete multilevel systems.

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE•Sep 26, 1997•0 citations

Optical data storage based on the long-lived photon echo

В. В. Самарцев

The phenomenon of the long-lived photon echo (LPE), discovered in a previous paper can be used for optical storage. We discuss the main peculiarities of LPE in a three-level system, one level of which is metastable. The crystals, doped by the rare-earth ions such as Pr/sup 3+/ and Eu/sup 3+/, the Van Vleck paramagnetics, are usually used as the data medium of such optical storage.

Optical Data Storage•Nov 22, 2002•0 citations

Accumulated long-lived photon echoes and optical memory in LaF3:Pr3+ crystals

В. А. Зуйков, D. F. Gainullin, В. В. Самарцев +4 more

Journal of Applied Spectroscopy•Jul 1, 1991•0 citations
An investigation was made of the optimal conditions for the generation of signals of an accumulated long-lived optical echo in an LaF 3 :Pr 3+ crystal (due to the 3 H 4 – 3 P 0 resonant transition) with the aim of basing a dynamic optical memory on this echo. The dependences of the intensities of the signals on the number of identical pulse pairs were determined experimentally for the first time and analyzed. An estimate was obtained in the lifetime of a metastable state.
The possibility of increase of the information storage time in optical memory devices based on the long-lived photon echo in rare-earth ion doped crystals provided that the latter are nanometer ones is analyzed. Taking into account that in such materials the information storage time is determined by the population lifetimes of hyperfine sublevels of a ground electron state it is possible to increase it due to the modification of phonon density of states in nanocrystals as compared to bulk crystals.