Title

Non-local coherent coupling between excitons in a disordered quantum well

Authors

Authors

Y. D. Glinka; M. Erementchouk; C. K. Dass; M. N. Leuenberger; A. S. Bracker;X. Q. Li

Comments

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Abbreviated Journal Title

New J. Phys.

Keywords

FOURIER-TRANSFORM SPECTROSCOPY; NONLINEAR-OPTICAL RESPONSE; HEAVY HOLE; EXCITONS; 4-WAVE-MIXING SPECTROSCOPY; ENERGY-TRANSFER; LIGHT HOLE; GAAS; SEMICONDUCTORS; BEATS; EXCITATION; Physics, Multidisciplinary

Abstract

We investigated coherent coupling among multiple exciton resonances formed in a single disordered quantum well using the powerful electronic two-dimensional Fourier transform spectroscopy. Our experiment revealed clear signatures of non-local coherent coupling between the heavy-hole and light-hole excitons residing in regions that differ in thickness by one atomic layer. The experimental observation is qualitatively explained by spatial overlap between exciton linear response functions calculated within a single defect model.

Journal Title

New Journal of Physics

Volume

15

Publication Date

1-1-2013

Document Type

Article

Language

English

First Page

12

WOS Identifier

WOS:000322311100003

ISSN

1367-2630

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