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Opt Express. 2010 Jul 19;18(15):16175-82. doi: 10.1364/OE.18.016175.

Coherent optical spectroscopy of a hybrid nanocrystal complex embedded in a nanomechanical resonator.

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  • 1Key Laboratory of Artificial Structures and Quantum Control(MOE), Department of Physics, Shanghai Jiao Tong University, Shanghai 200240, China.


We have theoretically investigated a hybrid nanocrystal complex consisted of a metal nanoparticle (MNP) and a semiconductor quantum dot (SQD) embedded in a nanomechanical resonator in the simultaneous presence of a strong control field and a weak probe field. It is shown that the resonance amplification peak of the probe spectrum will enhance dramatically due to the coupling of the plasmon, exciton and nanomechanical resonator. The enhancement increases significantly with decreasing the distance between the metal nanoparticle and a quantum dot, which implies the strong plasmon enhancement effect in this coupled system. The results obtained here may have the potential applications such as tunable Raman lasers and bio-sensors.

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