paper

Superradiance and collective gain in multimode optomechanics

arXiv:1409.7226 · doi:10.1103/PhysRevA.90.053808

Abstract

We present a description of a strongly driven multimode optomechanical system that shows the emergence of cooperative effects usually known from systems of atom-light interaction. Our calculations show that under application of a coherent pump field the system's response can be switched from a superradiant regime to a collective gain regime by varying the frequency detuning of the pump. In the superradiant regime, enhanced optical cooling of a single vibrational mode is possible, whereas the collective gain regime would potentially enable one to achieve almost thresholdless phonon laser action. The threshold pumping power scales as 1/N.

6 pages, 5 figures, to appear in Physical Review A

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