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Phys. Rev. Lett. 56, 2748–2751 (1986)

"Dressed Excitons" in a Multiple-Quantum-Well Structure: Evidence for an Optical Stark Effect with Femtosecond Response Time

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A. Mysyrowicz*, D. Hulin*, A. Antonetti, and A. Migus
Laboratoire d'Optique Appliquée, Ecole Polytechnique-Ecole Nationale Supérieure de Techniques Avancées, F-91120 Palaiseau, France

W. T. Masselink and H. Morkoç
Coordinated Sciences Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801

Received 13 February 1986; published in the issue dated 23 June 1986

A very large high-energy shift of exciton resonances in GaAs multiple-quantum-well structures is observed during irradiation of the sample with femtosecond nonresonant radiation. This effect is discussed in terms of excitons "dressed" by photons.

© 1986 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.56.2748
DOI:
10.1103/PhysRevLett.56.2748
PACS:
71.35.+z, 42.50.Hz, 42.65.Re, 73.40.Lq

*Also at Groupe de Physique des Solides de l'Ecole Normale Supérieure, Paris, France.