An optical three-pulse stimulated echo signal is analyzed theoretically and numerically for three pulses of arbitrary shape in a medium having hyperfine structures in the ground and excited states. The feasibility of its use as an optical fast-memory device is emphasized. Numerical analysis shows that the fidelity of the memory is reasonably good as long as the storage time T is short compared with the excited-state lifetime T1. However, the echo suffers severe modulation because of the hyperfine structures when T exceeds T1.
© 1986 Optical Society of America
Equations on this page are rendered with MathJax. Learn more.