Regensburg 2013 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 72: Nanomechanics (jointly with BP, DF, and DY)
TT 72.1: Vortrag
Freitag, 15. März 2013, 10:45–11:00, H20
Two-tone experiments and time domain control in circuit nano-electromechanics — •Hans Huebl1, Fredrik Hocke1, Xiaoqing Zhou2,3, Albert Schliesser2,3, Tobias J. Kippenberg2,3, and Rudolf Gross1,4 — 1Walther-Meißner-Institut, Bayerische Akademie der Wissenschaften, Garching, Germany — 2Ècole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland — 3Max-Planck-Institut für Quantenoptik, Garching, Germany — 4Physik-Department, TU München, Garching, Germany
In the field of optomechanics, a light field trapped in an optical resonator dynamically interacts with a mechanical degree of freedom, enabling cooling and amplification of mechanical motion. This concept of light matter interaction can be transferred to the microwave (MW) regime combining superconducting MW circuits with nanometer-sized mechanical beams, establishing the class of circuit nano-electromechanics. We discuss electromechanically induced transparency and electromechanically induced absorption employing continuous and pulsed excitation. With the latter technique, we access the dynamics of the hybrid system revealing that the switching dynamics of the transmitted light are not limited by the time constant imposed by the mechanical beam, the slowing of light pulses, and the phonon repopulation of a precooled mechanical mode due to thermal decoherence [1,2].
This work is supported by the Excellence Cluster "Nanosystems Initiative Munich (NIM)".
[1] X. Zhou et al., arXiv:1206.6052 (2012)
F. Hocke et al., arXiv:1209.4470 (2012)