Strong exciton-photon coupling in a length tunable optical microcavity with J-aggregate dye heterostructures

C. E. Finlayson*, G. Vijaya Prakash, Jeremy J. Baumberg

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

20 Citations (SciVal)

Abstract

We report the incorporation of thin films of a cyanine dye J aggregate into a versatile, length tunable, optical microcavity. The dense J-aggregate layers give an optical response that can be modified by embedding them at specific positions within heterostructures of dielectric and metal layers. The microcavities are composed of separate gold mirrors, which can be individually nanopositioned, and give sharp resonant modes in the red/near-infrared region of the spectrum. With the dye layer favorably placed, anticrossing behavior is observed as the cavity modes are successively swept through the absorption resonance. Large Rabi splittings of up to 170 meV are achieved at room temperature, agreeing well with predictions from a transfer-matrix model. These strongly coupled microcavities pave the way for microelectromechanical systems-integrated microdevices with tailored nonlinear optical properties.

Original languageEnglish
Article number041110
Pages (from-to)041110-1-041110-3
JournalApplied Physics Letters
Volume86
Issue number4
DOIs
Publication statusPublished - 2005
Externally publishedYes

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