Destructive multiphoton interference in optical coherent transients

Fred Moshary, Barry M. Gross, Y. Zhang +2 more

Summary form only given. Suitable probing of an accumulated population grating can induce destructive interference among various order wave-mixing processes under strong saturation conditions, resulting in the suppression of the scattered signal. A similar effect is predicted in transient four-wave-mixing (FWM) with stochastic pumps. Experimental results for the latter case are presented.

Anna Sanpera, L. Roso

А. В. Белинский, Давид Николаевич Клышко, M. E. Alferieff

Douglas Jackson, James J. Wynne

It is shown that destructive interference between two coherent excitation pathways from different optical harmonics, a fundamental and a third harmonic, inhibits resonance-enhanced multiphoton ionization. Once the role of the third harmonic is realized, the interference follows naturally from simple considerations of Fermi's "golden rule" and Maxwell's equations.

Jian Qi Shen

The evolutional optical behaviours (turn-on dynamics) of a four-level double-control tripod-configuration (electromagnetically induced transparency) system are considered based on the transient solution to the equation of motion of the probability amplitudes of the atomic levels. As the most remarkable property (quantum interference between the two control transitions) will arise in the present tripod-configuration system, the transient evolution of the permittivity in cases of both destructive and constructive quantum interferences is presented. It can be shown that the four-level double-control vapour can become a destructive-interference medium, (exhibiting a two-level resonant absorption) and a constructive-interference medium, (exhibiting transparency to the probe field), respectively, under certain conditions (related to the ratio of the two control field intensities). The present double-control scenario can be applicable to designs of some new photonic and quantum optical devices such as logic and functional devices (logic gate circuits) and the key component of the technology of quantum coherent information storage.

А. В. Белинский, Давид Николаевич Клышко