Controllable optical bistability in photonic-crystal one-atom laser

Guo, Xiaoyong; Lü, Shuchen

doi:10.1103/physreva.80.043826

Cited by 21 publications

(13 citation statements)

References 41 publications

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“…(1) denotes the Kerr nonlinearity, which has the form of a pairwise repulsion of photons [25,26] and its strength is characterized by U . For U = 0, the collective and cooperative emission in the model (1) has attracted tremendous interest since the model was proposed in a celebrated paper [27].…”

Section: Modelmentioning

confidence: 99%

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Polariton condensation with nonlinear photons

Guo

Ren

Chi³

2012

Phys. Rev. A

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In this paper we propose a model of polariton condensation with Kerr-type nonlinear photons. We introduce a generalized Dicke Hamiltonian to describe our system. By constructing the partition function as a path integral, the analytical and numerical solutions are presented. On the mean-field level, it is shown that the polariton condensation can occur and the Kerr nonlinearity affects the character of the polariton condensate. As the nonlinear coefficient increases, the condensate evolves from more photon-like to more exciton-like. Although the photon nonlinearity gives rise to a chemical potential greater than the photon energy, the quasiparticle excitation spectrum is still fully gapped. For the condensate collective excitations, the nonlinearity destroys the Goldstone modes and mixes the phase modes with the amplitude modes, resulting four non-zero-frequency collective modes. In addition, the influence of the photon-exciton detuning on the polariton condensate is also discussed.

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Section: Modelmentioning

confidence: 99%

“…In the nonlinear optics, the Kerr nonlinearity is often generated by certain optical medium with nonzero third-order nonlinear polarizability, such as doped semiconductor glass [26]. Unfortunately, most of these nonlinear materials lose their function at the quantum level.…”

Section: Modelmentioning

confidence: 99%

Polariton condensation with nonlinear photons

Guo

Ren

Chi³

2012

Phys. Rev. A

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“…The dynamical behavior of can be obtained through Eq. (19). Figure 4 presents the population difference as a function of the scaled delay time κt, for a good cavity limit κ = 0.1γ + (where γ + = 10γ ) and in the strong coupling region g = 10κ.…”

Section: Photonic Tunneling Effect Between Two Coupled Laser Cavimentioning

confidence: 99%

“…Such a defect structure is the so-called PC microcavity. Since then a great deal of research has been done on the one-atom laser in a PC microcavity and wide varieties of novel quantum statistical and spectral features have been unveiled [15][16][17][18][19]. In particular, better coherence, strong enhancement of the cavity field, nonclassical light generation, and controllable optical bistability have been predicted.…”

mentioning

confidence: 99%

Photonic tunneling effect between two coupled single-atom laser cavities imbedded within a photonic-crystal platform

Guo

Ren

2011

Phys. Rev. A

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In this paper we investigate the photonic tunneling effect between two coupled one-atom laser cavities. The physical system consists of two coupled photonic crystal microcavities and each cavity contains a coherently pumped two-level atom. The dynamics of the system can be described by the master equation in terms of the reduced density operator. It is shown that the photonic tunneling behavior depends on certain physical conditions of the system. In the absence of the pumping field and without dissipations, the coherent photon number imbalance between two cavities exhibits the alternating-current Josephson effect. However, when the pumping effect and losses of the system are taken into account, the mean photon number imbalance displays a damped oscillation. In addition, the influence of tunneling amplitude and photonic band-gap structure on the oscillations is also studied. The research gives a further insight into the correlated dynamics of two coupled one-atom laser systems and provides an idea for constructing novel photon tunnel devises.

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“…The model and Hamiltonian.-As illustrated in Fig. 1(a), the system under consideration consists of a PCC where each NVC is embedded in the localized nanocavity with frequency and nonlocal hopping rate tunable by changing geometrical parameters of the defects [39][40][41][42][43]. The ground state sublevels are |g 1 = 3 A, m s = +1 and |g 2 = 3 A, m s = −1 with radiation of σ − and σ + circular polarizations, respectively, whereas the excited level is |e = |A 2 within the spin-orbit excited state manifold [44,45].…”

mentioning

confidence: 99%

Optical signatures of Mott-superfluid transition in nitrogen-vacancy centers coupled to photonic crystal cavities

You,

Yang,

Chen

et al. 2019

Preprint

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We study the phenomenon of controllable localization-delocalization transition in a quantum many-body system composed of nitrogen-vacancy centers coupled to photonic crystal cavities, through tuning the different detunings and the relative amplitudes of two optical fields that drive two nondegenerate transitions of the Λ-type configuration. We not only characterize how dissipation affects the phase boundary using the mean-field quantum master equation, but also provide the possibility of observing this photonic quantum phase transition (QPT) by employing several experimentally observable quantities, such as mean intracavity photon number, density correlation function and emitted spectrum, exhibiting distinct optical signatures in different quantum phases. Such a spin-cavity system opens new perspectives in quantum simulation of condensed-matter and many-body physics in a well-controllable way.

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Controllable optical bistability in photonic-crystal one-atom laser

Cited by 21 publications

References 41 publications

Polariton condensation with nonlinear photons

Polariton condensation with nonlinear photons

Photonic tunneling effect between two coupled single-atom laser cavities imbedded within a photonic-crystal platform

Optical signatures of Mott-superfluid transition in nitrogen-vacancy centers coupled to photonic crystal cavities

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