A one-dimensional photonic-crystal nanocavity incorporating a fluorescent molecular dye

Mohamed M. Murshidy, Ali M. Adawi, Paul W. Fry, David G. Lidzey

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

We model the optical properties of a SiN based one-dimensional waveguide photonic crystal nanocavity with three tapered air holes as a function of the photonic crystal mirror fill factor using finite difference time domain calculations. We show that the Q -factor of this type of cavity has a strong dependence on the mirror fill factor, with a Q -factor as high as 35 000 predicted. Experimental studies on a range of representative structures whose surface is coated with a layer of a fluorescent dye confirm our modeling and reveal that such structures are characterized by a single optical mode having a Q -factor of 2000.

Original languageEnglish
Article number153303
JournalApplied Physics Letters
Volume97
Issue number15
DOIs
StatePublished - 11 Oct 2010
Externally publishedYes

Bibliographical note

Funding Information:
This work was supported by the UK EPSRC through Grant No. EP/D064767/1 “Nanoscale organic photonic structures.” One of us (M.M.M.) also thanks the Egyptian Ministry of Education for the award of a Ph.D. studentship.

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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