Quantum beats of free and bound excitons in GaN

Quantum beats of free and bound excitons in GaN

Mostra altre versioni (1)

We present spectrally resolved and time-integrated four-wave mixing measurements at coherent dynamics of bound excitons in a high-quality GaN epilayer. Coherent excitation, with co-circular polarized light, of the neutral donor-bound excitons (D 0X) and A excitons (XA) results in quantum beats, corr...

Descrizione completa

Dettagli Bibliografici
Autori principali: Kyhm, K, Taylor, R, Ryan, J, Aoki, T, Kuwata-Gonokami, M, Beaumont, B, Gibart, P
Natura: Journal article
Lingua:English
Pubblicazione: 2001
Descrizione
Riassunto:We present spectrally resolved and time-integrated four-wave mixing measurements at coherent dynamics of bound excitons in a high-quality GaN epilayer. Coherent excitation, with co-circular polarized light, of the neutral donor-bound excitons (D 0X) and A excitons (XA) results in quantum beats, corresponding to the energy splitting between D 0X and XA. The temperature-dependent dephasing rate is used to deduce the strength of the D 0X-acoustic-phonon interaction via the homogeneous linewidth. © 2001 American Institute of Physics.

Documenti analoghi