Share Email Print
cover

Proceedings Paper

Strong-coupled exciton and photon modes in conjugated-polymer-based microcavities
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

The strong coupling between exciton and photon modes in a conjugated polymer-based semiconductor microcavity was observed. The σ-conjugated poly(bis(p-butylphenyl)silane) (PBPS) thin films were inserted between metal and dielectric stack mirrors to form the microcavity structure. Change of the PBPS film-thickness (from 80 to 140 nm) allowed the cavity photon resonance to be tuned in the free-exciton transition. The expected anti-crossing behavior was observed at room temperature in the reflection spectra and the vacuum Rabi-splitting energy was found to be about 430 meV. This giant value is almost the same as the expectations of transfer matrix reflectivity calculations performed with optical constants (refractive index: n, extinction coefficient: k) derived from a Kramers-Kronig analysis of the PBPS absorption spectrum. Angle-dependent photoluminescence measurements were performed in each PBPS-based microcavity. In the microcavity with a 120nm-PBPS layer, the polariton emission that displays almost no blueshifts with angle was observed, a desirable feature for potential display applications.

Paper Details

Date Published: 10 November 2003
PDF: 9 pages
Proc. SPIE 5212, Linear and Nonlinear Optics of Organic Materials III, (10 November 2003); doi: 10.1117/12.503455
Show Author Affiliations
Noriyuki Takada, National Institute of Advanced Industrial Science and Technology (Japan)
Toshihide Kamata, National Institute of Advanced Industrial Science and Technology (Japan)
Donal D. C. Bradley, Imperial College London (United Kingdom)


Published in SPIE Proceedings Vol. 5212:
Linear and Nonlinear Optics of Organic Materials III
Mark G. Kuzyk; Manfred Eich; Robert A. Norwood, Editor(s)

© SPIE. Terms of Use
Back to Top