Berlin 2015 – wissenschaftliches Programm
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HL: Fachverband Halbleiterphysik
HL 107: Microcavities, polaritons and condensates
HL 107.4: Vortrag
Freitag, 20. März 2015, 11:00–11:15, EW 015
Analogy between optomechanical system and acoustic cavity — •Nicolas L. Naumann1, Julia Kabuß1, Andreas Knorr1, and Weng W. Chow2 — 1Institut für Theoretische Physik, Nichtlineare Optik und Quantenelektronik, Technische Universität Berlin, Berlin, Germany — 2Sandia National Laboratories, Albuquerque, NM, USA
Quantum optomechanics recently developed into an important research area. The system dynamics is driven by radiation pressure.
We propose an acoustic cavity for exploring analogies to optomechanics. A reason for this comparative study is that the electron--phonon coupling is stronger than the coupling due to radiation pressure, which may enable easier implementation of devices. We give two examples to illustrate the similarities in their stationary and dynamical behavior: Both systems exhibit the nonlinear effect of bistability. Furthermore, the effective damping of the respective low frequency component (mechanical mode or phonon mode) can be enhanced or diminished by choosing the detuning of the cavity to the pump laser appropriately.