Local observation and spectroscopy of optical modes in an active photonic-crystal microcavity.
We report the direct, room-temperature, near-field mapping and spectroscopy of the optical modes of a photonic-crystal microcavity containing quantum wells. We use a near-field optical probe to reveal the imprint of the cavity mode structure on the quantum-well emission. Furthermore, near-field spectroscopy allows us to demonstrate the strong spatial and spectral dependence of the coupling between the sources and the microcavity. This knowledge will be essential in devising future nanophotonic devices.
Louvion
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N
Laboratoire d'Electronique, Optoélectronique et Microsystémes, CNRS UMR 5512, Ecole Centrale de Lyon 36, avenue Guy de Collongue, F-69134 Ecully, France.
Gérard
D
D
Mouette
J
J
de Fornel
F
F
Seassal
C
C
Letartre
X
X
Rahmani
A
A
Callard
S
S