https://doi.org/10.1140/epjd/s10053-025-01080-0
Regular Article - Photons
Adjustable triple electromagnetically induced transparency and Kerr nonlinearity in five-level coupled quantum wells
1
Theoretical Photonics Group, Department of Physics, Sarala Birla University, 835103, Ranchi, Jharkhand, India
2
Department of Humanities and Sciences (H & S), Malla Reddy Engineering College for Women, 500100, Secunderabad, India
3
Department of Physics, RSAPS, The Assam Royal Global University, 781035, Guwahati, India
Received:
18
June
2025
Accepted:
12
October
2025
Published online:
1
November
2025
In this article, we present an alternative excitation scheme for the study of optical responses of the probe field in a five-level semiconductor coupled quantum wells (CQWs). It is shown that in the linear case, our study reveals the formation of double and triple electromagnetically induced transparency (EIT) windows for the suitable values of Rabi-frequency of the control fields, while the linear dispersion is also tuned from anomalous to normal and vice versa within small range of detuning. Interestingly, a suitable adjustment of the values of the control field detunings results in an exhibition of asymmetric absorption-transparency behavior. In addition, we also found that due to quantum coherence, nonlinear dispersion, specifically Kerr nonlinearity is dramatically enhanced with nearly vanishing linear and nonlinear absorptions under EIT. The Kerr nonlinearity in the present scheme is identified to be very large (
) in the mid IR range (
), which can be very useful for the investigation of several nonlinear phenomena at low light intensity in CQWs. The results of the investigations may have potential applications in optical switching devices at low powers and many more in solid-state laser-based systems.
Copyright comment Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2025
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
