Opening fluorescence and four-wave mixing<i>via</i>dual electromagnetically induced transparency windows

Zhao, Zhengyang; Wang, Z G; Li, P Y; Huang, Gaoping; Li, N; Zhang, Yi‐Qi; Yan, Yaqi; Zhang, Y P

doi:10.7452/lapl.201210089

Cited by 15 publications

(7 citation statements)

References 12 publications

(31 reference statements)

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“…The nonlinear optical processes related to the quantum coherence have shown their great potential in possible optoelectronic applications, such as optical buffers and modulators based on the slow-light phenomenon [33][34][35][36], all-optical switches based on optical bistability (OB) and optical multistability (OM) [37][38][39][40] and highly efficient frequency conversion in an ultra slow propagation regime [41,42]. Moreover, electromagnetically induced transparency (EIT) [43][44][45][46] may lead to great enhancement in nonlinear effects and steep dispersion, as well as to the reduction of group velocity, the storage of optical pulses [47,48] and controlling the intensity threshold of optical bistability [49].…”

Section: Laser Physics Lettersmentioning

confidence: 99%

A quintuple quantum dot system for electrical and optical control of multi/bistability in a telecommunication window

Mehmannavaz

Sattari

2015

Laser Phys. Lett.

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We propose a model for a quintuple coupled quantum dot system based on a GaAs/AlGaAs heterostructure. Then, we analyze the optical bistability (OB) and optical multistability (OM) behaviours and transition between the regimes at a wavelength of λ μ = 1.550 m. We take the benefit of consecutive and parallel interdot tunnelling and an incoherent pumping field for electrical and even optical control of the processes. It is shown that OB, OM and transition between them can be accomplished and controlled by adjusting the rate of the inter-dot tunnellings (electrical bias), probe wavelength detuning and rate of the optical incoherent pumping field. By proper choice of the controlling parameters, the bistable hysteresis loop becomes narrower, which makes it easier for the cavity field to reach saturation. We interpret the OB and OM behaviours by discussing the absorption of the active medium. We also investigate switching time between the two stable states when the output field jumps from a lower branch to an upper branch. Such a controllable OB/OM and transition between them in multiple QD molecules at a wavelength of 1.550 μm, may provide some new possibilities for technological applications in optoelectronics, solid-state quantum information science and systems dealing with signal processing.

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Section: Laser Physics Lettersmentioning

confidence: 99%

A quintuple quantum dot system for electrical and optical control of multi/bistability in a telecommunication window

Mehmannavaz

Sattari

2015

Laser Phys. Lett.

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“…p ca ca (12) In the steady-state regime, the time derivative in equation ( 11) is set to zero. Then, substituting equation ( 12) into equation (11), we obtain the probe field amplitude relation as…”

Section: Theoretical Model and Equationsmentioning

confidence: 99%

“…Many schemes [1][2][3][4] have been investigated based on atomic coherence and quantum interference effects to investigate OB and OM behaviors. In fact, atomic coherence and quantum interference can lead to some interesting phenomena such as four-wave mixing (FWM) [5][6][7][8], optical solution [9], electromagnetically induced transparency (EIT) [10][11][12], superluminal and subluminal propagation of light [13], atom localization [14,15], giant Kerr nonlinearity [16][17][18][19][20], and optical bistability (OB) [21][22][23][24][25][26][27], among others [28][29][30][31][32][33].…”

Section: Introductionmentioning

confidence: 99%

Optical bistability via Josephson coupling energy in a superconducting quantum circuit

Hamedi¹

2014

Laser Phys.

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A novel configuration is proposed to study optical bistability (OB) and optical multistability (OM) in a superconducting quantum circuit with a tunable V-type artificial molecule constructed by two superconducting Josephson charge qubits coupled with each other through a superconducting quantum interference device. We find that the ratio of the Josephson coupling energy to the capacitive coupling strength has a significant impact on creating optical bistability. The influence of other system parameters on bistable behavior of the artificial medium is then discussed. In particular, it is found that applying an incoherent pumping field can noticeably reduce the bistable threshold. We also realize a switch from OB to OM through proper tuning of detuning parameters. The controllability of OB and OM of this artificial molecule may be useful in building logic-gate devices for optical computing and quantum information processing and provide some new possibilities for solid-state quantum information science.

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“…Recently, many kinds of quantum optical phenomena based on the quantum interference and coherence in atomic systems have been extensively studied, such as optical switching [1,2], optical bistability [3][4][5][6][7][8], Kerr nonlinearity [9][10][11][12][13][14], gain without inversion [15,16], four-wave mixing (FWM) [17][18][19][20], optical soliton [21], atom localization [22][23][24], electromagnetically induced transparency (EIT) [25][26][27][28], and so on [29][30][31][32].…”

Section: Introductionmentioning

confidence: 99%

Transient absorption and lasing without inversion in an artificial molecule via Josephson coupling energy

Hamedi

2015

Laser Phys. Lett.

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This letter investigates the dynamical behavior of the absorption in a superconducting quantum circuit with a tunable V-type artificial molecule constructed by two superconducting Josephson charge qubits coupled with each other through a superconducting quantum interference device. It is found that the ratio of the Josephson coupling energy to the capacitive coupling strength provides an extra controlling parameter for manipulating transient absorption behaviors. It is also realized that in the presence of an incoherent pumping field, lasing without inversion can be obtained just through the joint effect of the Josephson coupling energy and the capacitive coupling strength. Results may provide some new possibilities for solid-state quantum information science.

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Opening fluorescence and four-wave mixingviadual electromagnetically induced transparency windows

Cited by 15 publications

References 12 publications

A quintuple quantum dot system for electrical and optical control of multi/bistability in a telecommunication window

A quintuple quantum dot system for electrical and optical control of multi/bistability in a telecommunication window

Optical bistability via Josephson coupling energy in a superconducting quantum circuit

Transient absorption and lasing without inversion in an artificial molecule via Josephson coupling energy

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