Dr Ali Adawi A.Adawi@hull.ac.uk
Reader in Physics
We model the modification in the spontaneous emission (SE) rate of an emitting dipole placed on the surface of a two-dimensional (2D) L3 optical nanocavity using 3D FDTD calculations. We show that by introducing a concave region into the cavity-surface, the cavity Q-factor is largely unaffected, however the electromagnetic field intensity at the dielectric-air interface is significantly enhanced compared to a regular L3 (planar) structure. Our calculations indicate that such a modification of the cavity surface leads to peak emission intensity enhancements (at the cavity-mode resonance) for a dipole emitter of 0.1 nm linewidth by a factor of 33 times. For an emitter having a linewidth of 12 nm, a peak intensity enhancement of 43 times is predicted. Finally, we show that enhancements of up to 42 times in SE rate can be expected for surface-bound (organic) emitters, with our structures having possible applications as nanosensor devices and single-photon light-sources.
Adawi, A. M., & Lidzey, D. G. (2008). A design for an optical-nanocavity optimized for use with surface-bound light-emitting materials. New Journal of Physics, 10(6), 065011. https://doi.org/10.1088/1367-2630/10/6/065011
Journal Article Type | Article |
---|---|
Acceptance Date | Feb 9, 2008 |
Online Publication Date | Jun 30, 2008 |
Publication Date | Jun 30, 2008 |
Journal | NEW JOURNAL OF PHYSICS |
Print ISSN | 1367-2630 |
Publisher | IOP Publishing |
Peer Reviewed | Peer Reviewed |
Volume | 10 |
Issue | 6 |
Pages | 065011 |
DOI | https://doi.org/10.1088/1367-2630/10/6/065011 |
Keywords | General Physics and Astronomy |
Public URL | https://hull-repository.worktribe.com/output/400132 |
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