We demonstrate strong light-matter coupling at room temperature in a GaN microcavity using simultaneous reflectivity and photoluminescence measurements. At 10 K strong coupling is also observed in both measurements despite the well-known dominance of GaN emission at low temperature by localized neutral donor bound excitons. In addition, the strong light-matter coupling regime is studied as a function of temperature with the tuning of the polariton modes, in this case a result due to the dominant redshift of the excitonlike branch with increasing temperature.
Polariton emission and reflectivity in GaN microcavities as a function of angle and temperature / I.R.Sellers;F.Semond;M.Leroux;J.Massies;M.Zamfirescu;F.Stokker-Cheregi; M.Gurioli;A.Vinattieri;M.Colocci;A.Tahraoui;A.A.Khalifa. - In: PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS. - ISSN 1098-0121. - STAMPA. - 74:(2006), pp. 193308-1-193308-4. [10.1103/PhysRevB.74.193308]
Polariton emission and reflectivity in GaN microcavities as a function of angle and temperature
GURIOLI, MASSIMO;VINATTIERI, ANNA;COLOCCI, MARCELLO;
2006
Abstract
We demonstrate strong light-matter coupling at room temperature in a GaN microcavity using simultaneous reflectivity and photoluminescence measurements. At 10 K strong coupling is also observed in both measurements despite the well-known dominance of GaN emission at low temperature by localized neutral donor bound excitons. In addition, the strong light-matter coupling regime is studied as a function of temperature with the tuning of the polariton modes, in this case a result due to the dominant redshift of the excitonlike branch with increasing temperature.File | Dimensione | Formato | |
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