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Angle-Resonant Stimulated Polariton Amplifier

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If you have a question about this talk, please contact Stefan Palzer.

The Journal club will discuss:

Roberts; Phys. Rev. Lett, 84, 7, 1547; “Angle-Resonant Stimulated Polariton Amplifier”


We experimentally demonstrate resonant coupling between photons and excitons in microcavities which can efficiently generate enormous single-pass optical gains approaching 100. This new parametric phenomenon appears as a sharp angular resonance of the incoming pump beam, at which the moving excitonic polaritons undergo very large changes in momentum. Ultrafast stimulated scattering is clearly identified from the exponential dependence on pump intensity. This device utilizes boson amplification induced by stimulated energy relaxation.

This talk is part of the AMOP Quantum Journal Club series.

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