TY - JOUR
T1 - Signatures of Γ 1-Γ 5 mixed-mode polaritons in polarized reflectance spectra of ZnO
AU - Takagi, Ayako
AU - Nakamura, Atsushi
AU - Yoshikaie, Akira
AU - Yoshioka, So Ichiro
AU - Adachi, Satoru
AU - Chichibu, Shigefusa F.
AU - Sota, Takayuki
PY - 2012/10/17
Y1 - 2012/10/17
N2 - Theoretical and experimental studies were carried out on exciton-polaritons excited in ZnO. Polaritons in which both Γ 1 and Γ 5 excitons couple to electromagnetic waves simultaneously are shown to exist, and their signatures are observed in polarized reflectance spectra measured under k ⊥ a and E∥c configurations for an m-plane sample. Theoretical calculations reveal that the mixed-mode polaritons consist of one Γ 1 transverse mode and two Γ 5 longitudinal modes. It is also shown that the signatures are sensitive to the valence band ordering.
AB - Theoretical and experimental studies were carried out on exciton-polaritons excited in ZnO. Polaritons in which both Γ 1 and Γ 5 excitons couple to electromagnetic waves simultaneously are shown to exist, and their signatures are observed in polarized reflectance spectra measured under k ⊥ a and E∥c configurations for an m-plane sample. Theoretical calculations reveal that the mixed-mode polaritons consist of one Γ 1 transverse mode and two Γ 5 longitudinal modes. It is also shown that the signatures are sensitive to the valence band ordering.
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U2 - 10.1088/0953-8984/24/41/415801
DO - 10.1088/0953-8984/24/41/415801
M3 - Article
C2 - 23006520
AN - SCOPUS:84866872390
SN - 0953-8984
VL - 24
JO - Journal of Physics Condensed Matter
JF - Journal of Physics Condensed Matter
IS - 41
M1 - 415801
ER -