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Photon confinement in photonic crystal nanocavities

Philippe Lalanne 1 Christophe Sauvan 1 Jean-Paul Hugonin 1
1 Laboratoire Charles Fabry de l'Institut d'Optique / Naphel
LCFIO - Laboratoire Charles Fabry de l'Institut d'Optique
Abstract : The quest for enhanced light-matter interactions has enabled a tremendous increase in the performance of photonic-crystal nanoresonators in the past decade. tate-of-the-art nanocavities now offer mode lifetime in the nanosecond range with confinement volumes of a few hundredths of a cubic micrometer. These results are certainly a consequence of the rapid development of fabrication techniques and modeling tools at micro- and nanometric scales. For future applications and developments, it is necessary to deeply understand the intrinsic physical quantities that govern the photon confinement in these cavities. We present a review of the different physical mechanisms at work in the photon confinement of almost all modern PhC cavity constructs. The approach relies on a Fabry-Perot picture and emphasizes three intrinsic quantities, the mirror reflectance, the mirror penetration depth and the defect-mode group velocity, which are often hidden by global analysis relying on an a posteriori analysis of the calculated cavity mode. The discussion also includes nanoresonator constructs, such as the important micropillar cavity, for which some subtle scattering mechanisms significantly alter the Fabry-Perot picture.
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Contributor : Christophe Sauvan Connect in order to contact the contributor
Submitted on : Wednesday, February 16, 2011 - 5:50:27 PM
Last modification on : Tuesday, December 8, 2020 - 10:08:51 AM

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  • HAL Id : hal-00566678, version 1

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Philippe Lalanne, Christophe Sauvan, Jean-Paul Hugonin. Photon confinement in photonic crystal nanocavities. Laser & Photonics Reviews, 2008, 2 (6), pp.514-526. ⟨hal-00566678⟩

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