Intracavity optical pumping of J-aggregate microcavity exciton polaritons

被引：23

作者：

Bradley, M. Scott ^{[1
]}

Bulovic, Vladimir ^{[1
]}

机构：

[1] MIT, Organ & Nanostruct Elect Lab, Ctr Exciton, Cambridge, MA 02139 USA

来源：

PHYSICAL REVIEW B | 2010年 / 82卷 / 03期

关键词：

THIN-FILMS; LASING ACTION; CONDENSATION; FABRICATION; RELAXATION; DYE;

D O I：

10.1103/PhysRevB.82.033305

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We demonstrate intracavity optical pumping of J-aggregate microcavity exciton polaritons. The use of ultrathin layer-by-layer J-aggregate thin films as the strongly coupled exciton medium allows for inclusion of a thermally evaporated luminescent cavity spacer layer, through which the lower-branch exciton-polariton states are resonantly pumped. We present a measurement of the lower-branch exciton-polariton occupation in room-temperature microcavity devices containing J-aggregated molecular thin films under low-density steady-state excitation. The observed exciton-polariton occupation shows a Maxwell-Boltzmann distribution at T =300 K, indicating thermalization of exciton polaritons in the lower energy branch. This device design enables us to propose a new type of "polariton laser" architecture for microcavity exciton polaritons.

引用

页数：4

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