Intracavity optical pumping of J-aggregate microcavity exciton polaritons
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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.
Date issued
2010-07Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer ScienceJournal
Physical Review B
Publisher
American Physical Society
Citation
Bradley, M. Scott, and Vladimir Bulovicacute. “Intracavity optical pumping of J-aggregate microcavity exciton polaritons.” Physical Review B 82.3 (2010): 033305. © 2010 The American Physical Society.
Version: Final published version