All-optical approach tunes harmonic generation by 26 meV in monolayer WS2, indicating new techniques for ultrafast control.
We attain ultrafast tuning of third-harmonic generation in monolayer WS 2 by all-optical switching. By coupling 2D excitons with photons of a strong non-resonant field, the third-harmonic signal was tuned by up to 26 meV.
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Almeida et al. (2025) studied this question.
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