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

Chinese Physics B

Nonlinear behavior of the population dynamics of three-level systems in the presence of single photon absorption

Allam Srinivasa Rao

Published Feb 1, 2019• 4 citations
Publisher
DOI
10.1088/1674-1056/28/2/024211

Related papers

Dynamics of two-photon processes in a two-level system

Nikolay N. Bogolubov, Fam Le Kien, A.S. Shumovsky

Physica A Statistical Mechanics and its Applications•Mar 1, 1985•5 citations

Coherent control of nondegenerate two-photon absorption by femtosecond laser pulses

Ji‐Cai Liu, Ye-Qi Zhang, Lei Chen

We investigate the dynamics of nondegenerate two-photon absorption in a cascade three-level system induced by two-color femtosecond laser pulses. It is demonstrated that optimal one-photon detunings of the field frequencies from the intermediate state can be used to control coherently the population inversion between the uppermost and the ground states. The propagation effects make the situation much more complicated. Our simulation shows the possibility of an optical soliton behavior of the two-color pulse with the help of the one-photon detuning.

Journal of Modern Optics•Aug 13, 2013•6 citations

Observation of population trapping in a two-photon resonant three-level atom

M. Kaivola, Nis Bjerre, Ove Poulsen +1 more

Optics Communications•Apr 1, 1984•13 citations

State-Population Narrowing Effect in Two-Photon Absorption for Intense Hard X-ray Pulses

Krzysztof Tyrała, Klaudia Wojtaszek, M. Pajek +4 more

We report on studies of state-populations during the two-photon absorption process using intense X-ray pulses. The calculations were performed in a time-dependent manner using a simple three-level model expressed by coupled rate equations. We show that the proposed approach describes well the measured rates of X-rays excited in the one-photon and two-photon absorption processes, and allows detailed investigation of the state population dynamics during the course of the incident X-ray pulse. Finally, we demonstrate that the nonlinear interaction of X-ray pulses with atoms leads to a time-narrowing of state populations. This narrowing-effect is attributed to a quadratic incidence X-ray intensity dependence characteristic for nonlinear interactions of photons with matter.

Applied Sciences•Jun 24, 2017•3 citations

Influence of Pulse width and Rabi frequency on the Population dynamics of three-level system in two-photon absorption process

Nam-Chol Kim, Myong-Chol Ko, Song‐Jin Im +1 more

We investigate the population dynamics of the three-level system in the two-photon absorption (TPA) process, mainly focusing the influence of pulse width and Rabi frequency on the population dynamics of the system. We observe the dependency of the population with the Rabi frequency and the pulse width. We also show that the arbitrary superposition state consisted in two states, upper state and lower state, is possible by controlling the pulse width and Rabi frequency. The results obtained can be used to the case of more complex multilevel system and they can be valuable for coherent quantum control in quantum information processing.

arXiv:1307.5649•Jul 22, 2013•0 citations

Dynamics of many-photon processes in two-level systems

N. N. Bogolyubov, Fam Le Kien, A. S. Shumovskiǐ

Theoretical and Mathematical Physics•Mar 1, 1985•3 citations
We investigate the dynamics of nondegenerate two-photon absorption in a cascade three-level system induced by two-color femtosecond laser pulses. It is demonstrated that optimal one-photon detunings of the field frequencies from the intermediate state can be used to control coherently the population inversion between the uppermost and the ground states. The propagation effects make the situation much more complicated. Our simulation shows the possibility of an optical soliton behavior of the two-color pulse with the help of the one-photon detuning.
We report on studies of state-populations during the two-photon absorption process using intense X-ray pulses. The calculations were performed in a time-dependent manner using a simple three-level model expressed by coupled rate equations. We show that the proposed approach describes well the measured rates of X-rays excited in the one-photon and two-photon absorption processes, and allows detailed investigation of the state population dynamics during the course of the incident X-ray pulse. Finally, we demonstrate that the nonlinear interaction of X-ray pulses with atoms leads to a time-narrowing of state populations. This narrowing-effect is attributed to a quadratic incidence X-ray intensity dependence characteristic for nonlinear interactions of photons with matter.
We investigate the population dynamics of the three-level system in the two-photon absorption (TPA) process, mainly focusing the influence of pulse width and Rabi frequency on the population dynamics of the system. We observe the dependency of the population with the Rabi frequency and the pulse width. We also show that the arbitrary superposition state consisted in two states, upper state and lower state, is possible by controlling the pulse width and Rabi frequency. The results obtained can be used to the case of more complex multilevel system and they can be valuable for coherent quantum control in quantum information processing.