| Issue |
EPL
Volume 114, Number 3, May 2016
|
|
|---|---|---|
| Article Number | 34001 | |
| Number of page(s) | 6 | |
| Section | Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics | |
| DOI | https://doi.org/10.1209/0295-5075/114/34001 | |
| Published online | 31 May 2016 | |
A dimer 
-symmetric model simulated in GaAs/AlGaAs quantum wells
1 College of Physics, Northwest University - Xi'an 710069, PRC
2 College of Physics and Electronic Science and Institute for Advanced Materials, Hubei Normal University Huangshi 435002, PRC
3 School of Physics and Information Technology, Shaanxi Normal University - Xi'an 710119, PRC
Received: 13 February 2016
Accepted: 11 May 2016
We perform the possibility to generate a dimer -symmetric model based on a double lambda four-level system in GaAs/AlGaAs quantum wells with biexcitonic transitions. By presenting the detuning management and modulating the Rabi frequencies of the two strong coupling laser fields, we show that the -symmetric model can be realized by the spatial evolution of the weak probe laser and four-wave mixing (FWM)-generated field along the propagation direction. The two weak fields in our model may be used to simulate two laser propagating in two -symmetric parallel waveguides. The diffraction effect also can be studied in some conditions. Our scheme offers two advantages: the complex refractive index is controlled by the strong coupling fields; the symmetry energy exchange between a dimer -symmetric structure is guaranteed by the four-wave mixing process. The present investigation may provide research opportunities in optical experiments.
PACS: 42.50.Gy – Effects of atomic coherence on propagation, absorption, and amplification of light; electromagnetically induced transparency and absorption / 11.30.Er – Charge conjugation, parity, time reversal, and other discrete symmetries / 78.20.Ci – Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity)
© EPLA, 2016
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