Local observation and spectroscopy of optical modes in an active photonic-crystal microcavity

Publication Type:
Journal Article
Physical Review Letters, 2005, 94 (11), pp. 1 - 4
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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. © 2005 The American Physical Society.
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