Ultrafast excitation and detection of K-point phonons in TMDs (IMAGE)

Yokohama National University

Ultrafast excitation and detection of K-point phonons in TMDs

Caption

By exciting the transitional metal dichalcogenide monolayers — atomically thin semiconductors — with ultrashort pump pulses, atoms can coherently vibrate and modulate optical responses. The probe pulses can detect the ultrafast modulation that shows peculiar high-frequency overtones of K-point acoustic phonons.

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Yokohama National University

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