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7 October 2016 Optical mode confinement in the Al/SiO2 disk nanocavities with hyperbolic dispersion in the infrared spectral region
Carla Bacco, Priscilla Kelly, Lyuba Kuznetsova
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Journal of Nanophotonics, Vol. 10, Issue 4, 046003 (October 2016). https://doi.org/10.1117/1.JNP.10.046003
Abstract
This paper presents the results of a numerical study of the optical mode confinement in whispering gallery mode disk nanocavities with hyperbolic dispersion using nanolayered Al/SiO2 hyperbolic metamaterial with different Al fill fractions. The fundamental properties of the optical modes and resonance frequencies for the disk nanocavities are studied using the numerical finite-element method. Numerical simulations show that light can be well confined in a disk nanocavity with a radius of up to an order of magnitude smaller than free-space resonant wavelength. This paper will also focus on how Purcell factor and quality factor of the disk nanocavities are affected by the fill fraction of the aluminum in the nanolayered metamaterial. Potential future applications for disk nanocavities with hyperbolic dispersion include silicon photonics optical communications networks, ultrafast LEDs, and biological nanoparticles sensing.
© 2016 Society of Photo-Optical Instrumentation Engineers (SPIE) 1934-2608/2016/$25.00 © 2016 SPIE
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Carla Bacco, Priscilla Kelly, and Lyuba Kuznetsova "Optical mode confinement in the Al/SiO2 disk nanocavities with hyperbolic dispersion in the infrared spectral region," Journal of Nanophotonics 10(4), 046003 (7 October 2016). https://doi.org/10.1117/1.JNP.10.046003
Published: 7 October 2016
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Cited by 8 scholarly publications.
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KEYWORDS
Aluminum
Dispersion
Metamaterials
Finite element methods
Free space optics
Infrared radiation
Light emitting diodes
CHORUS Article. This article was made freely available starting 07 October 2017
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