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Advanced filters: Author: Mehran Shahmohammadi Clear advanced filters

  • The electrons and holes in a semiconductor can bind together to form excitons, which in turn couple together at higher carrier densities to create biexcitons. Here, the authors show, contrary to expectation, that biexcitons can outlive excitons at carrier densities close to the appearance of unbound electrons and holes.

    • Mehran Shahmohammadi
    • Gwénolé Jacopin
    • Benoit Deveaud
    Research
    Nature Communications
    Volume: 5, P: 1-6

  • Fast and high-resolution Fourier transform spectrometers are indispensable for cutting-edge infrared spectroscopy. In this study, the authors employed a newly-designed fast-rotating retroreflective, broadband delay line demonstrating fast dual-comb spectroscopy with a single mid-infrared optical comb from a quantum cascade laser emitting at 8 micrometers.

    • Sergej Markmann
    • Martin Franckié
    • Giacomo Scalari
    ResearchOpen Access
    Communications Physics
    Volume: 6, P: 1-12