Theory of electro-optic modulation via a quantum dot coupled to a nano-resonator

Majumdar, Arka; Manquest, Nicolas; Faraon, Andrei; Vučković, Jelena

doi:10.1364/oe.18.003974

Cited by 38 publications

(8 citation statements)

References 26 publications

(41 reference statements)

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“…Using the linearization of the Heisenberg-Langevin equations, a type of dipole-induced transparency (DIT) can be well described [31,32], which is an analog of electromagnetically induced transparency (EIT) in atomic system [36][37][38][39]. Such a procedure by ignoring these nonlinear terms has been commonly adopted in many previous studies [40][41][42][43][44][45][46][47][48][49]. In the present work, we take into account the bichromatic driving field consisting of a cw control field and a cw probe field as well as the strong-coupling condition.…”

Section: Numerical Results and Discussion About High-order Sidementioning

confidence: 99%

Dipole-induced high-order sideband comb employing a quantum dot strongly coupled to a photonic crystal cavity via a waveguide

2014

Phys. Rev. B

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We propose a scheme for high-order sideband generation (HSG) by utilizing strong coupling between a single quantum dot (QD) and a photonic crystal cavity beyond the weak-excitation approximation. Here the hybrid system is coherently driven by an external bichromatic field consisting of a continuous-wave (cw) control field and a cw probe field. We take account of nonlinear terms in the Heisenberg-Langevin equations, i.e., the nonlinear nature of the QD, and give an effective method to deal with such a problem. It is shown, due to the presence of nonlinear terms, that the HSG with large intensities can be realized with experimentally achievable system parameters. This investigation may provide further insight into the understanding of solid-state cavity quantum electrodynamics system and find applications in optical comb and communication in a photonic crystal platform. In addition, the present theory can also be applied to other similar systems, such as a single quantum emitter positioned close to a microtoroidal resonator with the whispering-gallery-mode fields propagating inside the resonator.

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Section: Numerical Results and Discussion About High-order Sidementioning

confidence: 99%

Dipole-induced high-order sideband comb employing a quantum dot strongly coupled to a photonic crystal cavity via a waveguide

2014

Phys. Rev. B

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“…This method is completely quantum mechanical, and no approximation (other than the standard Born-Markov approximation and truncation of Fock state basis) is made. A semiclassical description of the coupled system [17] can be derived by using the relation…”

Section: Quantum and Semiclassical Descriptionmentioning

confidence: 99%

Nonlinear temporal dynamics of a strongly coupled quantum-dot–cavity system

et al. 2012

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We theoretically analyze the temporal dynamics of strongly coupled quantum-dot-cavity system driven by a resonant laser pulse and observe the signature of Rabi oscillation in the time-resolved response of the system (i.e., in the numerically calculated cavity output). We derive simplified linear and nonlinear semiclassical models that approximate well the system's behavior in the limits of high-and low-power driving pulses and describe the role of quantum coherence in the exact dynamics of the system. Finally, we also present time-resolved transmission measurements showing the dynamics of a quantum-dot-cavity system in the presence of a short laser pulse.

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“…In the recent years semiconductor nanostructures such as Quantum Dots (QDs) have attracted much attention due to the novel physical properties and potential for device applications in far infrared laser amplifiers (Kukushkin 2009), photo detectors (Krishna 2005;Vukmirovic et al 2009), high speed electro-optical modulators (Majumdar et al 2010), quantum computing (Loss and Divincenzo 1998), and etc. Three dimensional nanoscale confinement of electrons in this structures, makes it possible to observe quantum size effects on the electronic and optical properties of these structures (Ahn and Cuang 1987;Zhang et al 2006;Liu and Xu 2008;Rezaei et al 2008;Karabulut et al 2005).…”

Section: Introductionmentioning

confidence: 99%

Simultaneous effects of spin-orbit interaction and external electric field on the linear and nonlinear optical properties of a cubic quantum dot

2011

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In this article simultaneous effects of external electric field and spin-orbit interaction on the linear and the nonlinear optical properties of a cubic quantum dot are studied. Based on the non-degenerate perturbation method, energy eigenvalues and eigenfunctions of the system under the influence of spin-orbit interaction are calculated. Furthermore, the linear and the nonlinear optical absorption coefficients and refractive index changes are obtained using the compact density matrix approach and iterative method. Our results show that, due to the spin-orbit interaction, resonant peak values of the optical absorption coefficients and refractive index changes decrease and occur at lower values of the incident photon energy. The variation of these optical parameters depend on the spin-orbit interaction strength, dot dimensions and external electric field.

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Theory of electro-optic modulation via a quantum dot coupled to a nano-resonator

Cited by 38 publications

References 26 publications

Dipole-induced high-order sideband comb employing a quantum dot strongly coupled to a photonic crystal cavity via a waveguide

Dipole-induced high-order sideband comb employing a quantum dot strongly coupled to a photonic crystal cavity via a waveguide

Nonlinear temporal dynamics of a strongly coupled quantum-dot–cavity system

Simultaneous effects of spin-orbit interaction and external electric field on the linear and nonlinear optical properties of a cubic quantum dot

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