Nuclear Spectroscopy in Single Quantum Dots: Nanoscopic Raman Scattering and Nuclear Magnetic Resonance

Resonant Raman and nuclear magnetic resonance spectroscopies from single gallium arsenide quantum dots are demonstrated. The nuclei were probed through changes in the optical spectra of the quantum dot exciton arising from exciton-nuclear interactions. This approach allowed the application of optica...

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Bibliographic Details
Published in:Science (American Association for the Advancement of Science) 1997-07, Vol.277 (5322), p.85-88
Main Authors: Gammon, D., Brown, S. W., Snow, E. S., Kennedy, T. A., Katzer, D. S., Park, D.
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Energy
Exact sciences and technology
Excitons
Iii-v semiconductors
Lasers
Light
Line spectra
Magnetic fields
NMR
Nuclear interactions
Nuclear magnetic resonance
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Optical properties of specific thin films
Optical resonance
Phonons
Physics
Quantum theory
Raman scattering
Resonance
Spectroscopy
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Summary:Resonant Raman and nuclear magnetic resonance spectroscopies from single gallium arsenide quantum dots are demonstrated. The nuclei were probed through changes in the optical spectra of the quantum dot exciton arising from exciton-nuclear interactions. This approach allowed the application of optical spectroscopy with its extremely high sensitivity and selectivity. The experiments had a lateral spatial resolution of about 10 nanometers and probe a volume that was five orders of magnitude smaller than that of previous semiconductor nuclear spectroscopic studies.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.277.5322.85