Ultrafast nonlinear spectroscopy of individual quantum dots: imaging and coherent coupling

Jacek Kasprzak; Brian Patton; Wolfgang Langbein

doi:10.1117/12.767661

Ultrafast nonlinear spectroscopy of individual quantum dots: imaging and coherent coupling

Jacek Kasprzak^*, Brian Patton, Wolfgang Langbein

^*Corresponding author for this work

Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

Abstract

We review our recent advances in four-wave mixing spectroscopy of individual semiconductor quantum dots using heterodyne spectral interferometry, a novel implementation of transient nonlinear spectroscopy allowing the study of the transient nonlinear polarization emitted from individual electronic transitions in both amplitude and phase. We present experiments on individual excitonic transitions localized in monolayer islands of a GaAs/AlAs quantum well. The detection of amplitude and phase allows the implementation of a twodimensional femtosecond spectroscopy, in which mutual coherent coupling of single quantum dot states can be observed and quantified. By combining two-dimensional femtosecond spectroscopy with four-wave mixing mapping in the real space we found coherent coupling between spatially separated excitons by up to ~ 0.8 μm.

Original language	English
Title of host publication	Ultrafast Phenomena in Semiconductors and Nanostructure Materials XII
Number of pages	9
Volume	6892
DOIs	https://doi.org/10.1117/12.767661
Publication status	Published - 21 Apr 2008
Event	Ultrafast Phenomena in Semiconductors and Nanostructure Materials XII - San Jose, CA, United States Duration: 20 Jan 2008 → 23 Jan 2008

Conference

Conference	Ultrafast Phenomena in Semiconductors and Nanostructure Materials XII
Country/Territory	United States
City	San Jose, CA
Period	20/01/08 → 23/01/08

Keywords

coherent coupling
excitons
four-wave mixing
quantum dots
spectral interferometry
ultrafast non-linear spectroscopy

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10.1117/12.767661

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title = "Ultrafast nonlinear spectroscopy of individual quantum dots: imaging and coherent coupling",

abstract = "We review our recent advances in four-wave mixing spectroscopy of individual semiconductor quantum dots using heterodyne spectral interferometry, a novel implementation of transient nonlinear spectroscopy allowing the study of the transient nonlinear polarization emitted from individual electronic transitions in both amplitude and phase. We present experiments on individual excitonic transitions localized in monolayer islands of a GaAs/AlAs quantum well. The detection of amplitude and phase allows the implementation of a twodimensional femtosecond spectroscopy, in which mutual coherent coupling of single quantum dot states can be observed and quantified. By combining two-dimensional femtosecond spectroscopy with four-wave mixing mapping in the real space we found coherent coupling between spatially separated excitons by up to ~ 0.8 μm.",

keywords = "coherent coupling, excitons, four-wave mixing, quantum dots, spectral interferometry, ultrafast non-linear spectroscopy",

author = "Jacek Kasprzak and Brian Patton and Wolfgang Langbein",

year = "2008",

month = apr,

day = "21",

doi = "10.1117/12.767661",

language = "English",

isbn = "9780819470676",

volume = "6892",

booktitle = "Ultrafast Phenomena in Semiconductors and Nanostructure Materials XII",

note = "Ultrafast Phenomena in Semiconductors and Nanostructure Materials XII ; Conference date: 20-01-2008 Through 23-01-2008",

}

Kasprzak, J, Patton, B & Langbein, W 2008, Ultrafast nonlinear spectroscopy of individual quantum dots: imaging and coherent coupling. in Ultrafast Phenomena in Semiconductors and Nanostructure Materials XII. vol. 6892, 68920Z, Ultrafast Phenomena in Semiconductors and Nanostructure Materials XII, San Jose, CA, United States, 20/01/08. https://doi.org/10.1117/12.767661

TY - GEN

T1 - Ultrafast nonlinear spectroscopy of individual quantum dots

T2 - Ultrafast Phenomena in Semiconductors and Nanostructure Materials XII

AU - Kasprzak, Jacek

AU - Patton, Brian

AU - Langbein, Wolfgang

PY - 2008/4/21

Y1 - 2008/4/21

N2 - We review our recent advances in four-wave mixing spectroscopy of individual semiconductor quantum dots using heterodyne spectral interferometry, a novel implementation of transient nonlinear spectroscopy allowing the study of the transient nonlinear polarization emitted from individual electronic transitions in both amplitude and phase. We present experiments on individual excitonic transitions localized in monolayer islands of a GaAs/AlAs quantum well. The detection of amplitude and phase allows the implementation of a twodimensional femtosecond spectroscopy, in which mutual coherent coupling of single quantum dot states can be observed and quantified. By combining two-dimensional femtosecond spectroscopy with four-wave mixing mapping in the real space we found coherent coupling between spatially separated excitons by up to ~ 0.8 μm.

AB - We review our recent advances in four-wave mixing spectroscopy of individual semiconductor quantum dots using heterodyne spectral interferometry, a novel implementation of transient nonlinear spectroscopy allowing the study of the transient nonlinear polarization emitted from individual electronic transitions in both amplitude and phase. We present experiments on individual excitonic transitions localized in monolayer islands of a GaAs/AlAs quantum well. The detection of amplitude and phase allows the implementation of a twodimensional femtosecond spectroscopy, in which mutual coherent coupling of single quantum dot states can be observed and quantified. By combining two-dimensional femtosecond spectroscopy with four-wave mixing mapping in the real space we found coherent coupling between spatially separated excitons by up to ~ 0.8 μm.

KW - coherent coupling

KW - excitons

KW - four-wave mixing

KW - quantum dots

KW - spectral interferometry

KW - ultrafast non-linear spectroscopy

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U2 - 10.1117/12.767661

DO - 10.1117/12.767661

M3 - Conference contribution book

AN - SCOPUS:42149154420

SN - 9780819470676

VL - 6892

BT - Ultrafast Phenomena in Semiconductors and Nanostructure Materials XII

Y2 - 20 January 2008 through 23 January 2008

ER -

Ultrafast nonlinear spectroscopy of individual quantum dots: imaging and coherent coupling

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Keywords

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