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Reanalysis of Experimental Determinations of Polariton-Polariton Interactions in Microcavities

Journal Article · · Physical Review B

The polariton-polariton interaction strength is an important parameter for all kinds of applications using the nonlinear properties of polaritons, such as optical switching and single-photon blockade devices. In this paper, we review and compare the results of a series of experiments on polariton-polariton interactions in GaAs/AlxGa1-xAs microcavity polariton structures and present an updated analysis of these experiments. We show that not just the energy shift of the spectral lines but also the results of measurements sensitive to the polariton scattering rate are important for the calibration of the interaction parameter at low excitation density. We find that when adjustments are made to correct for recent understanding of the experiments, the value of the interaction parameter at low density is lower than previous reported, but still significantly higher than theoretically predicted.

Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE National Renewable Energy Laboratory (NREL)
DOE Contract Number:
AC36-08GO28308
OSTI ID:
1996235
Report Number(s):
NREL/JA-5K00-87252; MainId:88027; UUID:f7151126-51d5-43ab-bcf8-0a39943129e5; MainAdminID:70263
Journal Information:
Physical Review B, Vol. 107, Issue 16
Country of Publication:
United States
Language:
English

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