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

International Conference on Ultrafast Phenomena

Coherent Measurements of High-Order Electronic Correlations in GaAs Quantum Wells

Daniel B. Turner, Keith Adam Nelson

Published Jan 1, 2010• 1 citation
Publisher

Abstract

Multidimensional high-order coherent spectroscopy reveals correlations among more than two excitons. Features in the fifth-order and seventh-order spectra allow us to measure the extent of exciton correlations in a semiconductor nanostructure.
DOI
10.1364/up.2010.thc1

Related papers

Two-dimensional spectroscopy of semiconductor quantum wells

Hebin Li, Bachana Lomsadze, Galan Moody +2 more

Abstract Two-dimensional coherent spectroscopy of semiconductor quantum wells is discussed in this chapter. The chapter starts with an introduction of semiconductor optics. The signatures of many-body interaction and correlation are revealed as spectral features in 2D spectra including one-, double-, and multi-quantum 2D spectra. Two-dimensional coherent spectroscopy can also be used to study the coupling in coupled quantum wells and exciton-polaritons in microcavities.

•Feb 28, 2023•0 citations

Coherent Multidimenstional Spectroscopy in Semiconductor Quantum Wells Reveals Dark Excitons and Interactions at Low Excitation Density

Jonathan Owen Tollerud, Jeffrey A. Davis

Using a very sensitive coherent multidimensional spectroscopy in semiconductor quantum wells we reveal dark excitons and their coupling to bright excitons, interactions between excitons at low densities and new approaches to eliminate unwanted signals.

International Conference on Ultrafast Phenomena•Jan 1, 2016•0 citations

Three-dimensional electronic spectroscopy of excitons in GaAs quantum wells

Daniel B. Turner, Katherine W. Stone, Kenan Gündoğdu +1 more

We demonstrate three-dimensional (3D) electronic Fourier transform spectroscopy of GaAs quantum wells using four fully phase-coherent, noncollinear optical fields. Since the full complex signal field is measured as a function of all three time intervals, nearly every peak in the resulting 3D spectral solid arises from a distinguishable sequence of transitions represented by a single Feynman pathway. We use the 3D spectral peaks to separate two pathways involving weakly bound mixed biexcitons generated in different time orders. In the process, we reveal a peak that was previously obscured by a correlated but unbound exciton pair coherence. We also demonstrate a calibration procedure for the carrier frequency which yields biexciton binding energy values with high accuracy.

The Journal of Chemical Physics•Oct 13, 2009•98 citations

Probing many particle correlations in semiconductor quantum wells using double-quantum-coherence signal

Lijun Yang, Shaul Mukamel

Multidimensional analysis of coherent signals is commonly used in nuclear magnetic resonance to study correlations among spins. These techniques were recently extended to the femtosecond regime and applied to chemical, biological and semiconductor systems. In this work, we apply a two-dimensional correlation spectroscopy technique which employs double-quantum-coherence to investigate many-body effects in a semiconductor quantum well. The signal is detected along the direction k(1)+ k(2)- k(3), where k(1), k(2) and k(3) are the pulse wave vectors in chronological order. We show that this signal is particularly sensitive to many-body correlations which are missed by time-dependent Hartree-Fock approximation. The correlation energy of two-exciton can be probed with a very high resolution arising from a two-dimensional correlation spectrum, where two-exciton couplings spread the cross peaks along both axes of the 2D spectrum to create a characteristic highly resolved pattern. This level of detail is not available from conventional one-dimensional four-wave mixing or other two-dimensional correlation spectroscopy signals such as the photo echo (-k(1)+ k(2)+ k(3)).

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE•Feb 11, 2010•1 citation

Coherent Spectroscopy: Multidimensional Coherent Spectroscopy of Semiconductors (Laser Photonics Rev. 12(12)/2018)

Christopher L. Smallwood, Steven T. Cundiff

In article number 1800171, Christopher L. Smallwood and Steven T. Cundiff introduce a multidimensional coherent spectroscopy (MDCS) probe of the dynamics of excitons in an asymmetric In0.05Ga0.95As/GaAs double quantum well. Spectral information here is plotted as a correlation between the frequency of a first-order optical excitation interaction (ωτ) and a third-order emission interaction (ωt) at various intermediate-state mixing times (T), providing a window into a semiconductor's inhomogeneity, many-body interactions, and coherent coupling dynamics at femtosecond timescales. Image credit: Brad Baxley, Part to Whole.

Laser & Photonics Review•Dec 1, 2018•7 citations

Two-dimensional Fourier transform optical spectroscopy of GaAs quantum wells

C.N. Borca, Tianhao Zhang, S.T. Cundiff

Two-dimensional Fourier-transform optical spectroscopy is demonstrated on GaAs quantum-wells. The signal is measured phase coherently with respect to the evolution time, enabling Fourier analysis. Coupling between heavy and light hole excitons yields cross-peaks.

Conference on Lasers and Electro-Optics•Jan 1, 2004•0 citations
We demonstrate three-dimensional (3D) electronic Fourier transform spectroscopy of GaAs quantum wells using four fully phase-coherent, noncollinear optical fields. Since the full complex signal field is measured as a function of all three time intervals, nearly every peak in the resulting 3D spectral solid arises from a distinguishable sequence of transitions represented by a single Feynman pathway. We use the 3D spectral peaks to separate two pathways involving weakly bound mixed biexcitons generated in different time orders. In the process, we reveal a peak that was previously obscured by a correlated but unbound exciton pair coherence. We also demonstrate a calibration procedure for the carrier frequency which yields biexciton binding energy values with high accuracy.
Multidimensional analysis of coherent signals is commonly used in nuclear magnetic resonance to study correlations among spins. These techniques were recently extended to the femtosecond regime and applied to chemical, biological and semiconductor systems. In this work, we apply a two-dimensional correlation spectroscopy technique which employs double-quantum-coherence to investigate many-body effects in a semiconductor quantum well. The signal is detected along the direction k(1)+ k(2)- k(3), where k(1), k(2) and k(3) are the pulse wave vectors in chronological order. We show that this signal is particularly sensitive to many-body correlations which are missed by time-dependent Hartree-Fock approximation. The correlation energy of two-exciton can be probed with a very high resolution arising from a two-dimensional correlation spectrum, where two-exciton couplings spread the cross peaks along both axes of the 2D spectrum to create a characteristic highly resolved pattern. This level of detail is not available from conventional one-dimensional four-wave mixing or other two-dimensional correlation spectroscopy signals such as the photo echo (-k(1)+ k(2)+ k(3)).
In article number 1800171, Christopher L. Smallwood and Steven T. Cundiff introduce a multidimensional coherent spectroscopy (MDCS) probe of the dynamics of excitons in an asymmetric In0.05Ga0.95As/GaAs double quantum well. Spectral information here is plotted as a correlation between the frequency of a first-order optical excitation interaction (ωτ) and a third-order emission interaction (ωt) at various intermediate-state mixing times (T), providing a window into a semiconductor's inhomogeneity, many-body interactions, and coherent coupling dynamics at femtosecond timescales. Image credit: Brad Baxley, Part to Whole.