Skip to main content

Research Repository

Advanced Search

An optical nanocavity incorporating a fluorescent organic dye having a high quality factor

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

Authors

Paul W. Fry

David G. Lidzey

Mohamed M. Murshidy



Abstract

We have fabricated an L3 optical nanocavity operating at visible wavelengths that is coated with a thin-film of a fluorescent molecular-dye. The cavity was directly fabricated into a pre-etched, free-standing silicon-nitride (SIN) membrane and had a quality factor of Q = 2650. This relatively high Q-factor approaches the theoretical limit that can be expected from an L3 nanocavity using silicon nitride as a dielectric material and is achieved as a result of the solvent-free cavity-fabrication protocol that we have developed. We show that the fluorescence from a red-emitting fluorescent dye coated onto the cavity surface undergoes strong emission intensity enhancement at a series of discrete wavelengths corresponding to the cavity modes. Three dimensional finite difference time domain (FDTD) calculations are used to predict the mode structure of the cavities with excellent agreement demonstrated between theory and experiment.

Citation

Adawi, A. M., Fry, P. W., Lidzey, D. G., & Murshidy, M. M. (2010). An optical nanocavity incorporating a fluorescent organic dye having a high quality factor. ACS Nano, 4(6), 3039-3044. https://doi.org/10.1021/nn1001479

Journal Article Type Article
Acceptance Date May 19, 2010
Online Publication Date May 25, 2010
Publication Date Jun 22, 2010
Deposit Date Nov 13, 2014
Publicly Available Date Nov 23, 2017
Journal ACS nano
Print ISSN 1936-0851
Publisher American Chemical Society
Peer Reviewed Peer Reviewed
Volume 4
Issue 6
Pages 3039-3044
DOI https://doi.org/10.1021/nn1001479
Keywords General Engineering; General Physics and Astronomy; General Materials Science
Public URL https://hull-repository.worktribe.com/output/462735
Publisher URL http://pubs.acs.org/doi/abs/10.1021/nn1001479
Additional Information Authors' accepted manuscript of article published in: ACS nano, 2010, v.4, issue 6
Contract Date Nov 23, 2017

Files






You might also like



Downloadable Citations