Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

The European Physical Journal D

Controllable amplification and absorption properties in coupled-double-quantum-wells with tunneling-induced interference

Xiangying Hao, J. H. Li, Xin‐You Lü, Xiaoxia Yang

Published Nov 12, 2009• 16 citations
Publisher
DOI
10.1140/epjd/e2009-00290-6

Related papers

Coherent control of optical bistability in tunnel-coupled double quantum wells

Jiahua Li

Optics Communications•Mar 16, 2007•88 citations

Enhanced Kerr nonlinearity in a tunnel-coupled double quantum wells

Seyyed Hossein Asadpour, Hamid Reza Hamedi, A. Eslami-Majd +1 more

Physica E Low-dimensional Systems and Nanostructures•Oct 2, 2011•74 citations

Switching of amplification to absorption with enhanced Kerr nonlinearity in double quantum wells via Fano interference

Rohit Mukherjee, Nitu Borgohain, Rohit Hazra

Abstract In this communication, we investigate linear and nonlinear (Kerr) responses in an asymmetric double quantum wells induced by a weak probe and controlled by a signal field under double Λ excitation via the Fano interference. By carefully tuning the control field intensities, probe detuning and relative phase of the interacting electromagnetic fields, the amplification as well as the electromagnetically induced transparency (EIT) can be achieved to an efficient level in the proposed scheme. We observe that the absorption of the probe and signal fields decrease with the decrease in the strength of the Fano interference (ξ), while the Kerr nonlinearity enhances by almost ten times, reaching a value of the order ~ 10 − 10 m 2 / V 2 under the regime of EIT. The results presented may serve as a valuable reference for designing optimized slow and fast-light, solid-based optical switching devices, offering significant advantages over those based on atomic media.

Journal of Optics•Jun 11, 2026•0 citations

Control of the probe absorption in coupled quantum wells in two dimensions

Chengxian Kang, Yangcheng Ma, Zhiping Wang +1 more

Applied Physics A•May 23, 2016•0 citations

COHERENT TUNNELING AND QUANTUM CONTROL IN AN OPTICAL DOUBLE-WELL POTENTIAL

Poul Jessen, D. L. Haycock, Gerd Klose +5 more

Laser Spectroscopy•Jun 1, 2002•0 citations

Phase control of light propagation via Fano interference in asymmetric double quantum wells

Wen‐Xing Yang, Jia-Wei Lu, Zhikang Zhou +2 more

We investigate the light propagation and dynamical control of a weak pulsed probe field in asymmetric double quantum wells via Fano interference, which is caused by tunneling from the excited subbands to the same continuum. Our results show that the system can produce anomalous and normal dispersion regions with negligible absorption by choosing appropriate coupling strength of the tunneling and the Fano interference. Interesting enough, the dispersion can be switched between normal and anomalous by adjusting the relative phase between the pulsed probe and coherent control fields owing to the existence of the perfectly Fano interference. Thus, the relative phase can be regarded as a switch to manipulate light propagation with subluminal or superluminal. The temporal and spatial dynamics of the pulsed probe field with hyperbolic secant envelope are analyzed.

Journal of Applied Physics•May 27, 2014•14 citations
Abstract In this communication, we investigate linear and nonlinear (Kerr) responses in an asymmetric double quantum wells induced by a weak probe and controlled by a signal field under double Λ excitation via the Fano interference. By carefully tuning the control field intensities, probe detuning and relative phase of the interacting electromagnetic fields, the amplification as well as the electromagnetically induced transparency (EIT) can be achieved to an efficient level in the proposed scheme. We observe that the absorption of the probe and signal fields decrease with the decrease in the strength of the Fano interference (ξ), while the Kerr nonlinearity enhances by almost ten times, reaching a value of the order ~ 10 − 10 m 2 / V 2 under the regime of EIT. The results presented may serve as a valuable reference for designing optimized slow and fast-light, solid-based optical switching devices, offering significant advantages over those based on atomic media.
We investigate the light propagation and dynamical control of a weak pulsed probe field in asymmetric double quantum wells via Fano interference, which is caused by tunneling from the excited subbands to the same continuum. Our results show that the system can produce anomalous and normal dispersion regions with negligible absorption by choosing appropriate coupling strength of the tunneling and the Fano interference. Interesting enough, the dispersion can be switched between normal and anomalous by adjusting the relative phase between the pulsed probe and coherent control fields owing to the existence of the perfectly Fano interference. Thus, the relative phase can be regarded as a switch to manipulate light propagation with subluminal or superluminal. The temporal and spatial dynamics of the pulsed probe field with hyperbolic secant envelope are analyzed.