Factors Affecting Terahertz Emission from InGaN Quantum Wells under Ultrafast Excitation

MF Saleem, GA Ashraf, MF Iqbal… - … Journal of Optics, 2023 - Wiley Online Library
InGaN quantum wells (QWs) grown on c‐plane sapphire substrate experience strain due to
the lattice mismatch. The strain generates a strong piezoelectric field in QWs that contributes …

Terahertz electromagnetically induced optical limiter in asymmetric coupled quantum wells

N Parkan, M Mahmoudi - Scientific Reports, 2024 - nature.com
This paper explores the optical limiting (OL) characteristics of an input probe field within a
closed-loop asymmetric coupled quantum well (ACQW) system. Our research reveals that …

Sensitivity of the Linear and Nonlinear Optical Properties to an Electric Field and Doping Density in CdSe/MgSe Single Quantum Wells

A Jbeli - Journal of Electronic Materials, 2024 - Springer
In the present work, we explored the impact of doping concentration and applied electric
field on both linear and nonlinear optical properties based upon the intersubband transitions …

Doping-Dependent Nonlinear Electron Mobility in GaAs|InxGa1 –xAs Coupled Quantum-Well Pseudo-Morphic MODFET Structure

SR Panda, A Sahu, S Das, AK Panda, T Sahu - Semiconductors, 2020 - Springer
We analyze the asymmetric delta-doping dependence of nonlinear electron mobility μ of
GaAs| In x Ga 1–x As double quantum-well pseudo-morphic modulation doped field-effect …

Coherent terahertz control of vertical transport in semiconductor heterostructures

O Vänskä, I Tittonen, SW Koch, M Kira - Physical Review Letters, 2015 - APS
Coherent-control protocols are introduced to selectively transport electrons, excitons, or pure
two-particle correlations through semiconductor interfaces. The scheme is tested in a double …

Enhancement of electron mobility in asymmetric coupled quantum well structures

S Das, RK Nayak, T Sahu, AK Panda - Journal of Applied Physics, 2014 - pubs.aip.org
We study the low temperature multisubband electron mobility in a structurally asymmetric
GaAs/Al x Ga 1-x As delta doped double quantum well. We calculate the subband energy …

Enhancement of multisubband electron mobility in asymmetrically doped coupled double quantum well structure

S Das, RK Nayak, T Sahu, AK Panda - Physica B: Condensed Matter, 2015 - Elsevier
We study the effect of coupling of subband wave functions on the multisubband electron
mobility in a barrier delta doped GaAs/Al x Ga 1− x As asymmetric double quantum well …

Coherent Hall effect in a semiconductor superlattice

T Bauer, J Kolb, AB Hummel, HG Roskos, Y Kosevich… - Physical review …, 2002 - APS
The coherent Hall effect denotes the transient Hall response of impulsively excited coherent
charge-carrier wave packets in a solid. We report the first experimental study of this …

Excitonic absorption in asymmetric double quantum wells in an intense terahertz field: Coulombic coupling and Stark effects

JZ Zhang, D Allsopp - Physical Review B—Condensed Matter and Materials …, 2009 - APS
Optical absorption is calculated for asymmetric double quantum wells in intense terahertz
(THz) fields applied parallel to the growth direction z. Owing to the lack of inversion …

The effect of potential fluctuations on the optical properties of InGaAs∕ InGaAlAs single and coupled double quantum wells

LC Poças, JL Duarte, EM Lopes, IFL Dias… - Journal of applied …, 2006 - pubs.aip.org
A study was conducted on potential fluctuations using the photoluminescence (PL)
technique with temperature and excitation intensity variations, in a sample containing In Ga …