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

Physics Letters A

Resonance transfer of molecular excitation energy: Enhancement in channels

Jagadishwar Mahanty, Barry William Ninham

Published Apr 1, 1973• 2 citations
Publisher
DOI
10.1016/0375-9601(73)90009-1

Related papers

Excitation-energy transfer under strong laser drive

Xuanhua Wang, Zhedong Zhang, Jin Wang

Strong molecule-light interaction enables the control of molecular structures and dynamical processes. A model with a strong laser drive is proposed to greatly enhance the intermolecular distance of resonant energy transfer, where the molecules are strongly driven by an optical cavity. The optimal Rabi frequency and quantum yield of energy transfer are observed, resulting from the trade-off between dipole-dipole interaction and molecule-cavity coupling. When the strong drive at a certain Rabi frequency is applied, a larger spatial range of effective energy transfer and a slower decay rate with the distance compared to the F\"orster mechanism of resonant energy transfer are observed in our model. Our work sheds light on the spectroscopic study of cooperative energy transfer in molecular polaritons.

arXiv:2005.04719•Physical Review A•Jan 20, 2021•8 citations

Resonance Energy Transfer

Herbert C. Cheung

Kluwer Academic Publishers eBooks•Feb 4, 2006•82 citations

Control of excited-state population and vibrational coherence with shaped-resonant and near-resonant excitation

Tiago Buckup, Jürgen Hauer, Carles Serrat +1 more

We investigated numerically and experimentally the enhancement of vibrational coherence and population transfer in solution using tailored pulses. The general control mechanism is based on the precise control of the absorption after excitation with multipulses. Transient absorption was used as an experimental method to quantify the enhancement after the excitation with a shaped pump pulse in the low-pulse energy regime. A density-matrix approach was used to investigate the effect of the shaped excitation of a four-level system (two ground-state vibrational levels + two excited-state vibrational levels). Density-matrix simulation results suggest similar wavelength dependence as observed in the transient absorption experiment. The results show that enhancement of population transfer and vibrational coherence depends crucially on the overlap between the excitation pulse spectrum and the molecular absorption band.

Journal of Physics B Atomic Molecular and Optical Physics•Mar 26, 2008•34 citations

Energy transfer in conditions of excitation trapping

A. S. Agabekyan, A. A. Glushko

Journal of Applied Spectroscopy•Dec 1, 1981•0 citations

IN CONTROL OF EXCITATION ENERGY TRANSFER

John Frederick Allen, Michael A. Harrison

•Jan 1, 1990•0 citations

Resonant Energy Transfer, with Creation of Hyper-Excited Atoms, and Molecular Auto-Ionization in a Cold Rydberg Gas

Marwan Rasamny, Alan Martinez, Lianxin Xin +2 more

A cold Rydberg gas, with its atoms prepared initially all in the excited state |n0> , with n0 »1, contains an excessive amount of energy, and presumably is to relax by the Penning-type molecular auto-ionization (MAI), in which a portion of excess energy of one atom is given to another near-by atom and ionizing it. Its complementary process, the resonant energy transfer (RET), is discussed, in which the excess energy of one atom is used on another to form a hyper-excited atomic state |na> with na»n0. This process is always present, provided certain resonance energy conditions are satisfied. In this report, the n0 and density dependences of the RET rates are studied in detail, employing a simple model: 1) at low densities, the RET is mediated by the dipole-dipole coupling Vdd and its rates are generally much smaller than that of MAI, especially for small n0. But 2) as the density increases, our model shows that the rates become of comparable magnitude or even larger than the MAI rates. The Vdd is no longer adequate. We, then construct a semi-empirical potential to describe the RET process. 3) At high densities, we show that the atomic orbital of |na> overlaps with that of neighboring atoms, and the electron-electron potential becomes prominent, resulting in much higher rates.

Journal of Modern Physics•Jan 1, 2021•0 citations
Strong molecule-light interaction enables the control of molecular structures and dynamical processes. A model with a strong laser drive is proposed to greatly enhance the intermolecular distance of resonant energy transfer, where the molecules are strongly driven by an optical cavity. The optimal Rabi frequency and quantum yield of energy transfer are observed, resulting from the trade-off between dipole-dipole interaction and molecule-cavity coupling. When the strong drive at a certain Rabi frequency is applied, a larger spatial range of effective energy transfer and a slower decay rate with the distance compared to the F\"orster mechanism of resonant energy transfer are observed in our model. Our work sheds light on the spectroscopic study of cooperative energy transfer in molecular polaritons.
We investigated numerically and experimentally the enhancement of vibrational coherence and population transfer in solution using tailored pulses. The general control mechanism is based on the precise control of the absorption after excitation with multipulses. Transient absorption was used as an experimental method to quantify the enhancement after the excitation with a shaped pump pulse in the low-pulse energy regime. A density-matrix approach was used to investigate the effect of the shaped excitation of a four-level system (two ground-state vibrational levels + two excited-state vibrational levels). Density-matrix simulation results suggest similar wavelength dependence as observed in the transient absorption experiment. The results show that enhancement of population transfer and vibrational coherence depends crucially on the overlap between the excitation pulse spectrum and the molecular absorption band.
A cold Rydberg gas, with its atoms prepared initially all in the excited state |n0> , with n0 »1, contains an excessive amount of energy, and presumably is to relax by the Penning-type molecular auto-ionization (MAI), in which a portion of excess energy of one atom is given to another near-by atom and ionizing it. Its complementary process, the resonant energy transfer (RET), is discussed, in which the excess energy of one atom is used on another to form a hyper-excited atomic state |na> with na»n0. This process is always present, provided certain resonance energy conditions are satisfied. In this report, the n0 and density dependences of the RET rates are studied in detail, employing a simple model: 1) at low densities, the RET is mediated by the dipole-dipole coupling Vdd and its rates are generally much smaller than that of MAI, especially for small n0. But 2) as the density increases, our model shows that the rates become of comparable magnitude or even larger than the MAI rates. The Vdd is no longer adequate. We, then construct a semi-empirical potential to describe the RET process. 3) At high densities, we show that the atomic orbital of |na> overlaps with that of neighboring atoms, and the electron-electron potential becomes prominent, resulting in much higher rates.