Optical Kerr nonlinearity in quantum-well microcavities: From polariton to dipolariton

Jabri, H.; Eleuch, Hichem

doi:10.1103/physreva.102.063713

Cited by 13 publications

(11 citation statements)

References 49 publications

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“…It is obtained when the detection bandwidth includes only one single mechanical resonance and a negligible mode-mode coupling 50 . This is justified by the adiabatic limit in which the frequency of the moveable mirror is much smaller than the free spectral range of the cavity 49 . We should note that in this limit, the photon number produced by the Doppler, Casimir and retardation effects is negligible 52 , 53 .…”

Section: Model Hamiltonian and Dynamicsmentioning

confidence: 99%

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Squeezed vacuum interaction with an optomechanical cavity containing a quantum well

Jabri

Eleuch

2022

Sci Rep

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We investigate a hybrid system consisting of an optomechanical resonator and an optical cavity containing a quantum well. The system is coupled to a squeezed vacuum reservoir. We analyze the effect of the injection of squeezed photons inside the cavity on the intensity spectrum. The system reaches a regime of hybrid resonance where mechanical, excitonic and cavity modes are intermixed. Despite that the optomechanical interaction is the source of the nonlinearity in the system, the optimum squeezing is obtained at the hybrid resonance frequencies. However, when the squeezed vacuum is applied, at these frequencies the minimum squeezing is realized as well as an increase of fluctuations is observed. We show that the squeezed vacuum transforms the coherent states into highly squeezed states of light, and offers a great flexibility to obtain maximal squeezing. Furthermore, a perfect squeezing is predicted.

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Section: Model Hamiltonian and Dynamicsmentioning

confidence: 99%

“…In this perspective, via a new emerging setup namely the dipolariton cavity, we can achieve a high amount of squeezing with an excellent resistance to thermal excitations. This system combines two interacting quantum wells, where additional nonlinearities enhance the degree of squeezing 46 – 49 .…”

Section: Introductionmentioning

confidence: 99%

Squeezed vacuum interaction with an optomechanical cavity containing a quantum well

Jabri

Eleuch

2022

Sci Rep

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“…This strong coupling leads to nonlinear interaction between them, thereby creating a unique laboratory for the investigation of nonlinear collective phenomena like Bose-Einstein condensation 1,5,6 , superfluidity 7 , quantized vortices 8,9 etc. The extremely small effective mass of the polaritons (essentially arising from the photonic part) of the order of 10 −5 of the mass of free electrons and their large coherence length in the mm scale combined with the strong nonlinearity arising from the excitonic part results in a strong nonlinear optical response, which can have wider ramifications in optical switching 10 , optical computing 11 , photonic neural networks 12 etc. Such quantum microcavities present a unique platform for the investigation of quantum collective phenomena like polariton Bose-Einstein condensates (pBECs) in nonequilibrium systems in the temperature regime ranging from a few kelvins to room temperature 4 .…”

Section: Introductionmentioning

confidence: 99%

“…Such quantum microcavities present a unique platform for the investigation of quantum collective phenomena like polariton Bose-Einstein condensates (pBECs) in nonequilibrium systems in the temperature regime ranging from a few kelvins to room temperature 4 . The latter case may offer significant potential for practical applications as it enables one to realize a new source of coherent light and optical switching via the Kerr nonlinearity 10 .…”

Section: Introductionmentioning

confidence: 99%

Stability Window of Trapless Polariton Bose-Einstein condensates

Sabari,

Kumar,

Radha

et al. 2022

Preprint

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We theoretically explore the possibility of stabilizing the trapless polariton Bose-Einstein condensates (pBECs). Exploiting the variational method, we solve the associated nonlinear, complex Gross-Pitaevskii (cGP) equation and derive the equation of motion for the amplitude and width of the condensate. These variational results described by ordinary differential equations are rewritten to perform a linear stability analysis to generate a stability window in the repulsive domain. A set of coupled nonlinear ordinary differential equations obtained through variational approach are then solved by numerical simulations through the fourth order Runge-Kutta method, which are further supported by split-step Crank-Nicholson method, thereby setting the platform for stable pBECs. In particular, we generate a window containing system parameters in the g1 − γ ef f space within which the system can admit stable condensates. The highlight of the results is that one observes beating effects in the real time evolution of the condensates with attractive interactions much similar to multicomponent BECs, and their periodicity can be varied by manipulating linear and nonlinear loss/gain terms. For repulsive condensates, one notices the stretching of the density.

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“…[32][33][34][35] Particularly, semiconductor microcavities with quantum wells is a good example that have highly contributed to the exploration and the development of these materials. [36][37][38][39][40][41][42][43][44][45][46][47] In this specific structure, it is possible to confine electrons of the quantum well and the electromagnetic field. This confinement increases the mutual interactions of the two fields and permits to reach the strong coupling regime.…”

Section: Introductionmentioning

confidence: 99%

Unconventional Photon Blockade in Quantum‐Well Microcavities with Squeezed Light

Jabri

Eleuch

2021

Physica Status Solidi (b)

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The single-photon blockade effect arising in a cavity containing a quantum well and interacting with squeezed light, resulting from a down-conversion process through a nonlinear medium, is investigated. Optical parametric oscillator (OPO) materials with positive and negative second-order susceptibilities are considered. By solving the master equation analytically in the weak-driving limit and calculating the second-order equal-time correlation function, it is found that strong photon antibunching can be achieved in this system with weak excitonic nonlinearity or squeezed light via a destructive quantum interference mechanism. The optimal conditions for the photon blockade are derived analytically and discussed in details. Unlike the excitonic nonlinearity, a strong photon blockade occurs with the squeezed light at total or quasitotal resonance, even in the weak coupling regime, using an OPO material with negative second-order nonlinear susceptibility. By acting on the driving coherent pump frequency, the control of the cavity output is achieved and the scheme can serve as a tunable singlephoton emission source.

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Optical Kerr nonlinearity in quantum-well microcavities: From polariton to dipolariton

Cited by 13 publications

References 49 publications

Squeezed vacuum interaction with an optomechanical cavity containing a quantum well

Squeezed vacuum interaction with an optomechanical cavity containing a quantum well

Stability Window of Trapless Polariton Bose-Einstein condensates

Unconventional Photon Blockade in Quantum‐Well Microcavities with Squeezed Light

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