Infoscience

Journal article

Crossover from exciton to biexciton polaritons in semiconductor microcavities

Pump-probe measurements in a microcavity containing a quantum well show that a population of circularly polarized (sigma(+)) excitons can completely inhibit the transition to sigma(-) one-exciton states by transferring the oscillator strength to the biexcitonic resonance. With increasing pump intensity the linear exciton-polariton doublet evolves into a triplet polariton structure and finally into a shifted biexciton-polariton doublet. A theoretical model of interacting excitons demonstrates that the crossover from exciton to biexciton polaritons is driven by three-exciton Coulomb correlation.

    Keywords: QUANTUM-WELLS ; OPTICS ; REGIME ; GAS

    Note:

    PH Ecublens, Fed Inst Technol, Dept Phys, CH-1015 Lausanne, Switzerland. Univ Cagliari, Dipartimento Fis, I-09042 Monserrato, CA, Italy. Univ Cagliari, INFM, I-09042 Monserrato, CA, Italy. Saba, M, PH Ecublens, Fed Inst Technol, Dept Phys, CH-1015 Lausanne, Switzerland.

    ISI Document Delivery No.: 331ZN

    Times Cited: 18

    Cited Reference Count: 18

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    Reference

    Record created on 2007-08-31, modified on 2016-08-08

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