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Title: Exciton recurrence motion in aggregate systems in the presence of quantized optical fields

Abstract

The exciton dynamics of model aggregate systems, dimer, trimer, and pentamer, composed of two-state monomers is computationally investigated in the presence of three types of quantized optical fields, i.e., coherent, amplitude-squeezed, and phase-squeezed fields, in comparison with the case of classical laser fields. The constituent monomers are assumed to interact with each other by the dipole-dipole interaction, and the two-exciton model, which takes into account both the one- and two-exciton generations, is employed. As shown in previous studies, near-degenerate exciton states in the presence of a (near) resonant classical laser field create quantum superposition states and thus cause the spatial exciton recurrence motion after cutting the applied field. In contrast, continuously applied quantized optical fields turn out to induce similar exciton recurrence motions in the quiescent region between the collapse and revival behaviors of Rabi oscillation. The spatial features of exciton recurrence motions are shown to depend on the architecture of aggregates. It is also found that the coherent and amplitude-squeezed fields tend to induce longer-term exciton recurrence behavior than the phase-squeezed field. These features have a possibility for opening up a novel creation and control scheme of exciton recurrence motions in aggregate systems under the quantized optical fields.

Authors:
; ; ; ; ; ; ;  [1];  [2]
  1. Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531 (Japan)
  2. (Japan)
Publication Date:
OSTI Identifier:
20864362
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Chemical Physics; Journal Volume: 125; Journal Issue: 23; Other Information: DOI: 10.1063/1.2390695; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; DIMERS; DIPOLES; EXCITON MODEL; EXCITONS; LASER RADIATION; MONOMERS; PHOTON-ATOM COLLISIONS; PHOTON-MOLECULE COLLISIONS

Citation Formats

Nakano, Masayoshi, Ohta, Suguru, Kishi, Ryohei, Nate, Masahito, Takahashi, Hideaki, Furukawa, Shin-Ichi, Nitta, Hiroya, Yamaguchi, Kizashi, and Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043. Exciton recurrence motion in aggregate systems in the presence of quantized optical fields. United States: N. p., 2006. Web. doi:10.1063/1.2390695.
Nakano, Masayoshi, Ohta, Suguru, Kishi, Ryohei, Nate, Masahito, Takahashi, Hideaki, Furukawa, Shin-Ichi, Nitta, Hiroya, Yamaguchi, Kizashi, & Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043. Exciton recurrence motion in aggregate systems in the presence of quantized optical fields. United States. doi:10.1063/1.2390695.
Nakano, Masayoshi, Ohta, Suguru, Kishi, Ryohei, Nate, Masahito, Takahashi, Hideaki, Furukawa, Shin-Ichi, Nitta, Hiroya, Yamaguchi, Kizashi, and Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043. Thu . "Exciton recurrence motion in aggregate systems in the presence of quantized optical fields". United States. doi:10.1063/1.2390695.
@article{osti_20864362,
title = {Exciton recurrence motion in aggregate systems in the presence of quantized optical fields},
author = {Nakano, Masayoshi and Ohta, Suguru and Kishi, Ryohei and Nate, Masahito and Takahashi, Hideaki and Furukawa, Shin-Ichi and Nitta, Hiroya and Yamaguchi, Kizashi and Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043},
abstractNote = {The exciton dynamics of model aggregate systems, dimer, trimer, and pentamer, composed of two-state monomers is computationally investigated in the presence of three types of quantized optical fields, i.e., coherent, amplitude-squeezed, and phase-squeezed fields, in comparison with the case of classical laser fields. The constituent monomers are assumed to interact with each other by the dipole-dipole interaction, and the two-exciton model, which takes into account both the one- and two-exciton generations, is employed. As shown in previous studies, near-degenerate exciton states in the presence of a (near) resonant classical laser field create quantum superposition states and thus cause the spatial exciton recurrence motion after cutting the applied field. In contrast, continuously applied quantized optical fields turn out to induce similar exciton recurrence motions in the quiescent region between the collapse and revival behaviors of Rabi oscillation. The spatial features of exciton recurrence motions are shown to depend on the architecture of aggregates. It is also found that the coherent and amplitude-squeezed fields tend to induce longer-term exciton recurrence behavior than the phase-squeezed field. These features have a possibility for opening up a novel creation and control scheme of exciton recurrence motions in aggregate systems under the quantized optical fields.},
doi = {10.1063/1.2390695},
journal = {Journal of Chemical Physics},
number = 23,
volume = 125,
place = {United States},
year = {Thu Dec 21 00:00:00 EST 2006},
month = {Thu Dec 21 00:00:00 EST 2006}
}