Coherent Phase Control of Multiphoton Ionization in Three-Level Ladder-Type System

Zhang Shi-An, Yuting Chen, Zugeng Wang +1 more

We present the theoretical investigation of photoelectron spectroscopy resulting from the strong field induced multiphoton ionization in a typical three-level ladder-style system. Our theoretical results show that the photo-electron spectral structure can be alternatively steered by spectral phase modulation. This physical mechanism for strong field quantum control is explicitly exploited by the time-dependent dressed state population. It is concluded that the phase-shaped laser pulses can be used to selectively manipulate the multiphoton ionization process in complicated quantum systems.

A.F. Linskens, Nico J. Dam, J. Reuß

Carrera Espinoza, Juan José

Heung‐Ryoul Noh, Han Seb Moon

We present a diagrammatic method for complete characterization of multiphoton processes in three-level atomic systems. By considering the interaction routes of the coupling and probe photons for a ladder-type, three-level, noncycling (or cycling) atomic system, we are able to completely discriminate between the pure one-photon and the pure two-photon resonance effects, and the effect of their combination in electromagnetically induced transparency (EIT) using our diagrammatic method. We show that the proposed diagrammatic method is very useful for the analysis of multiphoton processes in ladder-type EIT.

Sangkyung Lee, Jongseok Lim, Jaewook Ahn

We demonstrate coherent control of multiphoton absorption in a dynamically shifted energy level structure. In a three-level model system of atomic sodium, we controlled the quantum interference of sequential 2+1 photons and direct three-photon transitions.

A. Szöke