Abstract
The basic excitations of noble metallic nanoparticles and semiconductor quantum dots are, respectively, surface plasmons and excitons. In this Brief Report it is shown that when these nanostructures are conjugated together, their combined hybrid system can support a meta- ``molecular'' resonance. Such a resonance happens in the space/time domain and is associated with the time delay induced by the plasmonic effects in the response of the quantum dot to a time-dependent optical field. The metaresonance happens when the distance between the quantum dot and the metallic nanoparticle reaches a critical value and the time delay goes to infinity. The results demonstrate generation of Rabi oscillation in quantum dots via plasmons and offer alternative ultrasensitive methods for sensing.
Published Version
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