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Creator | Title | Description | Subject | Date |
1 |
 | Boehme, Christoph | Fast nuclear spin hyperpolarization of phosphorus in silicon | We experimentally demonstrate a method for obtaining nuclear spin hyperpolarization, that is, polarization significantly in excess of that expected at thermal equilibrium. By exploiting a nonequilibrium Overhauser process, driven by white light irradiation, we obtain more than 68% negative nuclear p... | Hyperpolarization; Spin coherence; Electrical readout | 2009-01 |
2 |
 | Mishchenko, Eugene | Mesoscopic spin-Hall effect in 2D electron systems with smooth boundaries | The spin-Hall effect in a ballistic 2D electron gas with Rashba-type spin-orbit coupling and smooth edge confinement is studied. We predict that the interplay of semiclassical electron motion and quantum dynamics of spins leads to several distinct features in spin density along the edge that origina... | Spin- Hall effect; 2D electron systems | 2009-05 |
3 |
 | Vardeny, Zeev Valentine; Nahata, Ajay | Terahertz spectroscopy of plasmonic fractals | We use terahertz time-domain spectroscopy to study the transmission properties of metallic films perforated with aperture arrays having deterministic or stochastic fractal morphologies (‘‘plasmonic fractals''), and compare them with random aperture arrays. All of the measured plasmonic fractals... | Plasmonic fractals; Random aperture arrays | 2009-03 |
4 |
 | Lupton, John Mark | Unraveling the inhomogeneously broadened absorption spectrum of conjugated polymers by single-molecule light-harvesting action spectroscopy | The distribution of chromophores in single polymer chains is revealed by photoluminescence excitation spectroscopy under excitation of the backbone and detection of emission from an end cap. Spectral broadening in excitation exceeds that in emission. An increase in vibronic coupling for shorter (h... | Spectral broadening; Chromophores | 2009-10 |