Abstract
We investigate the creation of the optical second-order sideband (OSS) from a hybrid system consisting of a single quantum dot (QD), a spherical metallic nanoparticle, and a low-Q microcavity driven with a weak probe and a strong control field. Beyond the conventional linearized description, we solve the nonlinear Heisenberg–Langevin equations for achieving the nonlinear coefficient of the OSS by employing the perturbation technique. It is shown that the hybrid of plasmon and cavity modes induces the formation of the surface plasmon polaritons, resulting in a controllable interaction that can be enhanced into a strong coupling regime even if the cavity–QD interaction is initially in the weak-coupling regime. As a result, enhanced OSS generation and the splitting of the transmission spectra can be observed. In addition, it is also shown that the size of the metal nanoparticle (MNP) has a profound effect on the output OSS spectrum, which might form a precision self-referenced detection scheme for extracting size information of the MNP.
Highlights
We investigate the creation of the optical second-order sideband (OSS) from a hybrid system consisting of a single quantum dot (QD), a spherical metallic nanoparticle, and a low-Q microcavity driven with a weak probe and a strong control field
In this Letter, beyond the conventional linearized description, we investigate light transmission from a hybrid system consisting of a single quantum dot (QD), a spherical metallic nanoparticle, and a low-Q microcavity driven with a weak probe and a strong control field
In order to examine how metal nanoparticle (MNP) coupling to a low Q cavity (Q 1⁄4 800) and QD in the weak-coupling regime modifies the transmission of the probe field and OSS process, we first provide in Figs. 2(a) and 2(b) the comparative results of the transmission and the OSS spectrum for two different cases, i.e., a conventional QD-cavity system and a QD-cavity system embedded with MNP, respectively
Summary
The research on quantum coherent control of the interaction of light and matter has developed toward solid-state materials with flexible design and easy integration. The surface plasmon polaritons of metal nanostructures can bind a light field to the surface of nanostructures, which makes it possible for optical manipulation to break the diffraction limit, and have a wide range of applications in surface-enhanced Raman scattering, micro–nano sensing and waveguide, solar cells, and quantum optics. Several recent studies have found that the hybrid system of precious metalmicrocavity can effectively solve the serious decoherence problems caused by metal absorption and scattering loss of surface plasmon, control the radiation spectrum of quantum radiators, and observe the effects of vacuum Rabi splitting, second and third harmonic radiation, higher harmonics, etc. In this regard, we note that an analytical quantum model has been built by the Heisenberg–. Several recent studies have found that the hybrid system of precious metalmicrocavity can effectively solve the serious decoherence problems caused by metal absorption and scattering loss of surface plasmon, control the radiation spectrum of quantum radiators, and observe the effects of vacuum Rabi splitting, second and third harmonic radiation, higher harmonics, etc.. Several recent studies have found that the hybrid system of precious metalmicrocavity can effectively solve the serious decoherence problems caused by metal absorption and scattering loss of surface plasmon, control the radiation spectrum of quantum radiators, and observe the effects of vacuum Rabi splitting, second and third harmonic radiation, higher harmonics, etc.17,18 In this regard, we note that an analytical quantum model has been built by the Heisenberg–. The size of the MNP has a profound effect on the output OSS spectrum, which might form a precision self-referenced detection sensor of the MNP
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