Article

Spin Manipulation Using the Light-Shift Effect in Rubidium Atoms

Graduate School of Science, Kobe University, Kobe 657-8501, Japan.
Physical Review Letters (Impact Factor: 7.51). 11/2009; 103(21):213602. DOI: 10.1103/PhysRevLett.103.213602
Source: PubMed

ABSTRACT

Optical manipulation of spin coherence in rubidium atoms is studied. The effect of off-resonant and circularly polarized light on optically induced magnetization is investigated. The change in precession frequency caused by the light-shift effect is verified. Absorption-free phase control of spin precession and pure spin rotation about an arbitrary axis are demonstrated. A theory of precession frequency shift that includes the effect of absorption is considered by using the density matrix and the experimental results are in agreement with the predictions of the theory. Thus, we show that it is possible to carry out off-resonant control of spin coherence and all-optical manipulation of spins.

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    • "The other applications are associated to the high optical field configurations (as an optical tweezer or potential well) [10]. Spin manipulation has generated tremendous research progress in many fields, as light-shift effect in rubidium atom [11], magnetic clusters [12], semiconductors [13], GaAs/AlGaAs quantum well [14], carbon nanotubes [15], thin-film nanomagnets [16], magnetic tunnel junctions [17], and CdTe quantum dots [18]. All of them are based on pulsed magnetic resonance technique which is well developed, but to date the single spin detection still remains a challenging task. "

    Full-text · Article · Jul 2013
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    • "The other applications are associated to the high optical field configurations (as an optical tweezer or potential well) [5]. Spin manipulation has generated tremendous research progress in many fields, as light-shift effect in rubidium atom [6], magnetic clusters [7], semiconductors [8], GaAs/AlGaAs quantum well [9], carbon nanotubes [10], thin-film nanomagnets [11], magnetic tunnel junctions [12], and CdTe quantum dots [13]. All of them are based on pulsed magnetic resonance technique which is well developed, but to date a single spin detection still remains a challenging task. "
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