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Updated: Dec 10, 2025

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
Published on: November 30, 2012
Excitation Ladder of Cavity Polaritons
Travis M Autry1,2,3, Gaël Nardin1, Christopher L Smallwood1,4,5
1JILA, University of Colorado & National Institute of Standards and Technology, Boulder, Colorado 80309-0440, USA.
Abstract:
Multidimensional coherent spectroscopy directly unravels multiply excited states that overlap in a linear spectrum. We report multidimensional coherent optical photocurrent spectroscopy in a semiconductor polariton diode and explore the excitation ladder of cavity polaritons. We measure doubly and triply avoided crossings for pairs and triplets of exciton polaritons, demonstrating the strong coupling between light and dressed doublet and triplet semiconductor excitations. These results demonstrate that multiply excited excitonic states strongly coupled to a microcavity can be described as two coupled quantum-anharmonic ladders.
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