Near-field spectroscopy of the quantum constituents of a luminescent system.

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Science. 1994 Jun 17;264(5166):1740-5. doi: 10.1126/science.264.5166.1740

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Near-field spectroscopy of the quantum constituents of a luminescent system. Hess LabBetzig LabHarris Lab

Hess HF, Betzig E, Harris TD, Pfeiffer LN, West KW

Note: Research in this publication was not performed at Janelia.

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Abstract

Luminescent centers with sharp (<0.07 millielectron volt), spectrally distinct emission lines were imaged in a GaAs/AIGaAs quantum well by means of low-temperature near-field scanning optical microscopy. Temperature, magnetic field, and linewidth measurements establish that these centers arise from excitons laterally localized at interface fluctuations. For sufficiently narrow wells, virtually all emission originates from such centers. Near-field microscopy/spectroscopy provides a means to access energies and homogeneous line widths for the individual eigenstates of these centers, and thus opens a rich area of physics involving quantum resolved systems.

PMID: 17839907 [PubMed - indexed for MEDLINE]

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Near-field spectroscopy of the quantum constituents of a luminescent system.

Note: Research in this publication was not performed at Janelia.

Abstract

PMID: 17839907 [PubMed - indexed for MEDLINE]