| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1546979 | Physica E: Low-dimensional Systems and Nanostructures | 2010 | 4 Pages |
Abstract
We have investigated the characteristics of exciton polaritons in a ZnO microcavity with HfO2/SiO2 distributed Bragg reflectors. The results of the angle-resolved reflectance spectra were analyzed by calculating the cavity polariton dispersions with a phenomenological Hamiltonian for the coupling between the cavity photon and three kinds of excitons labeled A, B, and C peculiar to ZnO. The vacuum-Rabi-splitting energy is estimated to be â¼80Â meV. The reflectance dips originating from the cavity polaritons shift to lower energy side with an increase in temperature. We discuss the temperature dependence of the cavity-polariton energies of the ZnO microcavity on the basis of the phenomenological Hamiltonian taking account of the temperature dependence of the exciton energies with Varshni's law.
Related Topics
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Materials Science
Electronic, Optical and Magnetic Materials
Authors
Toshiki Kawase, Shingo Komura, Kenichi Miyazaki, DaeGwi Kim, Masaaki Nakayama,