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Optics Letters

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  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 17 — Sep. 1, 2014
  • pp: 4994–4997

Absorption enhancement of molecules in the weak plasmon–exciton coupling regime

Sinan Balci, Ertugrul Karademir, Coskun Kocabas, and Atilla Aydinli  »View Author Affiliations


Optics Letters, Vol. 39, Issue 17, pp. 4994-4997 (2014)
http://dx.doi.org/10.1364/OL.39.004994


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Abstract

We report on the experimental and theoretical investigations of enhancing the optical absorption of organic molecules in the weak plasmon–exciton coupling regime. A metal–organic hybrid structure consisting of dye molecules embedded in the polymer matrix is placed in close vicinity to thin metal films. We have observed a transition from a weak coupling regime to a strong coupling one as the thickness of the metal layer increases. The results indicate that absorption of the self-assembled J-aggregate nanostructures can be increased in the weak plasmon–exciton coupling regime and strongly quenched in the strong coupling regime. A theoretical model based on the transfer-matrix method qualitatively confirms the experimental results obtained from polarization-dependent spectroscopic reflection measurements.

© 2014 Optical Society of America

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(260.2160) Physical optics : Energy transfer
(300.1030) Spectroscopy : Absorption
(250.5403) Optoelectronics : Plasmonics

ToC Category:
Optics at Surfaces

History
Original Manuscript: July 4, 2014
Revised Manuscript: July 20, 2014
Manuscript Accepted: July 20, 2014
Published: August 18, 2014

Citation
Sinan Balci, Ertugrul Karademir, Coskun Kocabas, and Atilla Aydinli, "Absorption enhancement of molecules in the weak plasmon–exciton coupling regime," Opt. Lett. 39, 4994-4997 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-17-4994


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