Study of Orthoexciton-to-Paraexciton Conversion in Cu2O by Excitonic Lyman Spectroscopy

Abstract : Using time-resolved 1s-2p excitonic Lyman spectroscopy, we study the orthoexciton-to-paraexciton transfer, following the creation of a high density population of ultracold 1s orthoexcitons by resonant two-photon excitation with femtosecond pulses. An observed fast exciton-density dependent conversion rate is attributed to spin exchange between pairs of orthoexcitons. Implication of these results on the feasibility of Bose-Einstein condensation of paraexcitons in Cu2O is discussed.
keyword : exciton
Document type :
Journal articles
Complete list of metadatas

https://hal-polytechnique.archives-ouvertes.fr/hal-00463616
Contributor : Aurélien Houard <>
Submitted on : Saturday, March 13, 2010 - 1:30:16 AM
Last modification on : Wednesday, July 3, 2019 - 10:48:02 AM

Links full text

Identifiers

Collections

Citation

M. Kubouchi, K. Yoshioka, Ryo Shimano, André Mysyrowicz, M. Kuwata-Gonokami. Study of Orthoexciton-to-Paraexciton Conversion in Cu2O by Excitonic Lyman Spectroscopy. Physical Review Letters, American Physical Society, 2005, 94 (1), pp.016403. ⟨10.1103/PhysRevLett.94.016403⟩. ⟨hal-00463616⟩

Share

Metrics

Record views

136