Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.

Science 17 June 1994:
Vol. 264. no. 5166, pp. 1740 - 1745
DOI: 10.1126/science.264.5166.1740
Prev | Table of Contents | Next

Articles

Near-Field Spectroscopy of the Quantum Constituents of a Luminescent System

H. F. Hess 1, E. Betzig 1, T. D. Harris 1, L. N. Pfeiffer 1, and K. W. West 1

1 AT&T Bell Laboratories, 600 Mountain Avenue, Murray Hill, NJ 07974, USA.

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.

Submitted on March 10, 1994
Accepted on May 6, 1994


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Imaging Intracellular Fluorescent Proteins at Nanometer Resolution.
E. Betzig, G. H. Patterson, R. Sougrat, O. W. Lindwasser, S. Olenych, J. S. Bonifacino, M. W. Davidson, J. Lippincott-Schwartz, and H. F. Hess (2006)
Science 313, 1642-1645
   Abstract »    Full Text »    PDF »
Near-Field Coherent Spectroscopy and Microscopy of a Quantum Dot System.
J. R. Guest, T. H. Stievater, G. Chen, E. A. Tabak, B. G. Orr, D. G. Steel, D. Gammon, and D. S. Katzer (2001)
Science 293, 2224-2227
   Abstract »    Full Text »    PDF »
Coherent Optical Control of the Quantum State of a Single Quantum Dot.
N. H. Bonadeo, J. Erland, D. Gammon, D. Park, D. S. Katzer, and D. G. Steel (1998)
Science 282, 1473-1476
   Abstract »    Full Text »
Coupled Quantum Dots Fabricated by Cleaved Edge Overgrowth: From Artificial Atoms to Molecules.
G. Schedelbeck, W. Wegscheider, M. Bichler, and G. Abstreiter (1997)
Science 278, 1792-1795
   Abstract »    Full Text »


To Advertise     Find Products

Science. ISSN 0036-8075 (print), 1095-9203 (online)