Radiation-Induced Correlation between Molecules Nearby Metallic Antenna Array

We theoretically investigate optical absorption of molecules embedded nearby metallic antennas by using discrete dipole approximation method. It is found that the spectral peak of the absorption is shifted due to the radiation-induced correlation between the molecules. The most distinguishing featur...

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Main Authors: Yoshiki Osaka, Nobuhiko Yokoshi, Hajime Ishihara
Format: Article
Language:English
Published: Wiley 2015-01-01
Series:International Journal of Antennas and Propagation
Online Access:http://dx.doi.org/10.1155/2015/747580
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author Yoshiki Osaka
Nobuhiko Yokoshi
Hajime Ishihara
author_facet Yoshiki Osaka
Nobuhiko Yokoshi
Hajime Ishihara
author_sort Yoshiki Osaka
collection DOAJ
description We theoretically investigate optical absorption of molecules embedded nearby metallic antennas by using discrete dipole approximation method. It is found that the spectral peak of the absorption is shifted due to the radiation-induced correlation between the molecules. The most distinguishing feature of our work is to show that the shift is largely enhanced even when the individual molecules couple with localized surface plasmons near the different antennas. Specifically, we first consider the case that two sets of dimeric gold blocks with a spacing of a few nanometers are arranged and reveal that the intensity and spectral peak of the optical absorption strongly depend on the position of the molecules. In addition, when the dimeric blocks and the molecules are periodically arranged, the peak shift is found to increase up to ~1.2 meV (300 GHz). Because the radiation-induced correlation is essential for collective photon emission, our result implies the possibility of plasmon-assisted superfluorescence in designed antenna-molecule complex systems.
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publishDate 2015-01-01
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series International Journal of Antennas and Propagation
spelling doaj-art-49ac075e63754623a340e7d3c23e1dc12025-02-03T05:51:43ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772015-01-01201510.1155/2015/747580747580Radiation-Induced Correlation between Molecules Nearby Metallic Antenna ArrayYoshiki Osaka0Nobuhiko Yokoshi1Hajime Ishihara2Department of Physics and Electronics, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai, Osaka 599-8531, JapanDepartment of Physics and Electronics, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai, Osaka 599-8531, JapanDepartment of Physics and Electronics, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai, Osaka 599-8531, JapanWe theoretically investigate optical absorption of molecules embedded nearby metallic antennas by using discrete dipole approximation method. It is found that the spectral peak of the absorption is shifted due to the radiation-induced correlation between the molecules. The most distinguishing feature of our work is to show that the shift is largely enhanced even when the individual molecules couple with localized surface plasmons near the different antennas. Specifically, we first consider the case that two sets of dimeric gold blocks with a spacing of a few nanometers are arranged and reveal that the intensity and spectral peak of the optical absorption strongly depend on the position of the molecules. In addition, when the dimeric blocks and the molecules are periodically arranged, the peak shift is found to increase up to ~1.2 meV (300 GHz). Because the radiation-induced correlation is essential for collective photon emission, our result implies the possibility of plasmon-assisted superfluorescence in designed antenna-molecule complex systems.http://dx.doi.org/10.1155/2015/747580
spellingShingle Yoshiki Osaka
Nobuhiko Yokoshi
Hajime Ishihara
Radiation-Induced Correlation between Molecules Nearby Metallic Antenna Array
International Journal of Antennas and Propagation
title Radiation-Induced Correlation between Molecules Nearby Metallic Antenna Array
title_full Radiation-Induced Correlation between Molecules Nearby Metallic Antenna Array
title_fullStr Radiation-Induced Correlation between Molecules Nearby Metallic Antenna Array
title_full_unstemmed Radiation-Induced Correlation between Molecules Nearby Metallic Antenna Array
title_short Radiation-Induced Correlation between Molecules Nearby Metallic Antenna Array
title_sort radiation induced correlation between molecules nearby metallic antenna array
url http://dx.doi.org/10.1155/2015/747580
work_keys_str_mv AT yoshikiosaka radiationinducedcorrelationbetweenmoleculesnearbymetallicantennaarray
AT nobuhikoyokoshi radiationinducedcorrelationbetweenmoleculesnearbymetallicantennaarray
AT hajimeishihara radiationinducedcorrelationbetweenmoleculesnearbymetallicantennaarray