@article{564a635ca4e94e81837ea27e7e1b97fe,
title = "Unexpectedly slow two particle decay of ultra-dense excitons in cuprous oxide",
abstract = "For an ultra-dense exciton gas in cuprous oxide (Cu2O), exciton-exciton interactions are the dominant cause of exciton decay. This study demonstrates that the accepted Auger recombination model overestimates the exciton decay rate following intense two photon excitation. Two exciton decay is relevant to the search for collective quantum behavior of excitons in bulk systems. These results suggest the existence of a new high density regime of exciton behavior.",
keywords = "A. Copper(I) oxide, D. Auger, D. Polaritons, E. Femtosecond laser",
author = "{Laszlo Frazer}, N. and Schaller, {Richard D.} and Ketterson, {J. B.}",
note = "Funding Information: We would like to thank Professor M. Grayson for helpful discussions. This work made use of the J.B. Cohen X-Ray Diffraction Facility and OMM Facility supported by the MRSEC program of the National Science Foundation ( DMR-0520513 ) at the Materials Research Center of Northwestern University . Use of the Center for Nanoscale Materials was supported by the U. S. Department of Energy, Office of Science, Office of Basic Energy Sciences , under Contract no. DE-AC02-06CH11357 . Support was provided by NSF IGERT DGE-0801685 . N.L.F. gratefully acknowledges the support from the Ryan Fellowship and the Northwestern University International Institute for Nanotechnology . ",
year = "2013",
doi = "10.1016/j.ssc.2013.07.015",
language = "English (US)",
volume = "170",
pages = "34--38",
journal = "Solid State Communications",
issn = "0038-1098",
publisher = "Elsevier Limited",
}