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Shaking quantum dots

Picosecond acoustic pulses can be used to shift the optical transition energy of a quantum dot towards the resonance frequency of a microcavity, thus temporarily causing the device to lase. This ultrafast modulation technique has significant potential for exploring phenomena throughout quantum physics.

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Figure 1: The QD shaking experiments of Brüggemann et al.


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Correspondence to Masahiro Nomura.

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Nomura, M., Arakawa, Y. Shaking quantum dots. Nature Photon 6, 9–10 (2012).

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