Quantum interference control of femtosecond, microA current bursts in single GaAs nanowires.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 20373775.
- Also identified by DOI 10.1021/nl1004898.
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Abstract
A phase-stable superposition of femtosecond pulses from a compact erbium-doped fiber source and their second harmonic is shown to induce ultrashort approximately microA current bursts in single unbiased GaAs nanowires. Current injection relies on a quantum interference of one- and two-photon absorption pathways. The vector direction of the current is solely dictated by the polarization and relative phase of the harmonically related light components while its power dependence is consistent with a third order optical nonlinearity.
Medical subject headings
- Arsenicals
- Electronics
- Gallium
- Nanostructures
- Nanotechnology
- Optical Devices
- Refractometry