NUCLEAR SPECTROSCOPY IN SINGLE QUANTUM DOTS - NANOSCOPIC RAMAN-SCATTERING AND NUCLEAR-MAGNETIC-RESONANCE

Authors
GAMMON D BROWN SW SNOW ES KENNEDY TA KATZER DS PARK D
Citation
D. Gammon et al., NUCLEAR SPECTROSCOPY IN SINGLE QUANTUM DOTS - NANOSCOPIC RAMAN-SCATTERING AND NUCLEAR-MAGNETIC-RESONANCE, Science, 277(5322), 1997, pp. 85-88
Citations number
26
Categorie Soggetti
Multidisciplinary Sciences
Journal title
Science → ACNP
ISSN journal
00368075
Volume
277
Issue
5322
Year of publication
1997
Pages
85 - 88
Database
ISI
SICI code
0036-8075(1997)277:5322<85:NSISQD>2.0.ZU;2-Q
Abstract
Resonant Raman and nuclear magnetic resonance spectroscopies from sing le gallium arsenide quantum dots are demonstrated. The nuclei were pro bed through changes in the optical spectra of the quantum dot exciton arising from exciton-nuclear interactions. This approach allowed the a pplication 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 magnitu de smaller than that of previous semiconductor nuclear spectroscopic s tudies.