Anisotropic light-matter coupling and below-threshold excitation dynamics in an organic crystal microcavity
| Autor: | Yusuke Ueda, Masaaki Nakayama, Hitoshi Mizuno, Keita Imai, Hisao Yanagi, Kenichi Yamashita, Tomoya Tagami, Takeshi Obuchi, Shun Takahashi |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Condensed Matter::Quantum Gases
Photoluminescence Materials science Condensed Matter::Other business.industry Physics::Optics Atomic and Molecular Physics and Optics Organic semiconductor Coupling (physics) Optics Polariton Optoelectronics Spontaneous emission Photonics business Anisotropy Excitation |
| Zdroj: | Optics express. 29(17) |
| ISSN: | 1094-4087 |
| Popis: | Organic semiconductors are promising candidates as platforms for room temperature polaritonic devices. An issue for practical implementation of organic polariton devices is the lowering of condensation threshold. Here we investigate anisotropic light-matter coupling characteristics in an organic crystal microcavity showing strong molecular orientation. Furthermore, the below-threshold excitation dynamics are investigated to clarify the spontaneous transition pathways from reservoir to polariton states. Time-resolved photoluminescence measurements reveal that photonic/excitonic hybrid transition processes coexist in the microcavity system. This finding provides valuable insights into a detailed understanding of polariton dynamics and help in the design of polaritonic devices showing a low-threshold condensed phase. |
| Databáze: | OpenAIRE |
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