Zobrazeno 1 - 10
of 26
pro vyhledávání: '"B. Appasamy"'
Publikováno v:
Physical Review Letters. 80:2805-2808
Excitation spectra of an individual trapped ${}^{138}{\mathrm{Ba}}^{+}$ ion show sidebands of radial and axial ion vibration in the trap. The second-order sidebands involving radial and axial vibrations would allow swapping these vibrational states;
Publikováno v:
Europhysics Letters (EPL). 35:259-264
The emission spectrum of the bichromatically excited resonance fluorescence of a single atomic particle, i.e. of a permanently trapped and cooled Ba+ ion has been recorded. It shows up to five peaks, two of them partially resolved, in agreement with
Publikováno v:
Annales Des Télécommunications. 51:373-382
A frequency source supposed to serve as a standard requires feedback for short-term and long-term frequency control. A spectral discriminant for short-term control may be provided, in the microwave regime, by a hyperfine resonance of a multi-ion ense
Publikováno v:
Optics Communications. 118:123-132
Laser-induced excitation and deexcitation of a strongly bound, cold trapped ion on the vibrational sidebands is analyzed, assuming the detection of quantized fluorescence. The laser couples to oscillations in one, two or three spatial directions. Sid
Autor:
Jürgen Eschner, W. Neuhauser, Peter E. Toschek, B. Appasamy, Y. Stalgies, Rainer Blatt, I. Siemers
Publikováno v:
Applied Physics B Lasers and Optics. 60:473-477
A single trapped and cooled Ba+ ion is irradiated by resonant visible light (493, 650 nm) alternating with light at 1.76 µm which may excite the ion to its2D5/2 metastable state. The (absence of) visible resonance scattering probes the excitation, t
Publikováno v:
Physica Scripta. :278-285
A single trapped and cooled ion interacting with light is the realization of a fundamental system of quantum optics. Relevant viewpoints include the light scattering and its relation to the preparation of the ion, the dynamics of the ion's internal m
Autor:
Rainer Blatt, I. Siemers, R. Huesmann, Y. Stalgies, L. S. Ma, B. Appasamy, V. Enders, Peter E. Toschek, Ph. Courteille, W. Neuhauser
Publikováno v:
Proceedings of Conference on Precision Electromagnetic Measurements Digest.
Resonance on a weak signal line of a single cold ion appears at the maximum rate of intermittent quenching the fluorescence on a resonance line: The m=0/spl rarr/0 ground state hyperfine transition of a single /sup 171/Yb/sup +/ and the S/sub 1/2 /-D
Publikováno v:
AIP Conference Proceedings.
The microwave-induced dynamics of the nuclear spin and the laser-induced dynamics of the centre-of-mass motion of individual ions have been studied: (i) The phase shift of the hyperfine Larmor precession of a ground-state {sup 171}Yb{sup +} ion upon
Publikováno v:
EQEC 96 1996 European Quantum Electronic Conference EQEC-96.
Publikováno v:
Physical review letters. 74(13)
When a single trapped ion is laser excited to a metastable state, its ``quantum jump'' inhibits the laser-excited light scattering on a resonance line. This event, and its inverse, modifies the distribution over the oscillator levels $(n)$ of the ion