Anisotropic light-matter coupling and below-threshold excitation dynamics in an organic crystal microcavity

被引：4

作者：

Tagami, Tomoya ^{[1
]}

Ueda, Yusuke ^{[1
]}

Imai, Keita ^{[1
]}

Takahashi, Shun ^{[1
]}

Mizuno, Hitoshi ^{[2
]}

Yanagi, Hisao ^{[2
]}

Obuchi, Takeshi ^{[3
]}

Nakayama, Masaaki ^{[3
]}

Yamashita, Kenichi ^{[1
]}

机构：

[1] Kyoto Inst Technol, Fac Elect Engn & Elect, Sakyo Ku, Kyoto 606858, Japan

[2] Nara Inst Sci & Technol, Grad Sch Mat Sci, 8916-5 Takayama, Ikoma, Nara 6300192, Japan

[3] Osaka City Univ, Grad Sch Engn, Dept Appl Phys, Sumiyoshi Ku, Osaka 5588585, Japan

来源：

OPTICS EXPRESS | 2021年 / 29卷 / 17期

基金：

日本学术振兴会;

关键词：

POLARITON-RELAXATION; MODE;

D O I：

10.1364/OE.425461

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

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. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：26433 / 26443

页数：11

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