Exciton-mediated photothermal cooling in GaAs membranes

Abstract

Cooling of the mechanical motion of a GaAs nano-membrane using the photothermal effect mediated by excitons was recently demonstrated by some of us [K. Usami, et al., Nature Phys. 8, 168 (2012)] and provides a clear example of the use of thermal forces to cool down mechanical motion. Here, we report on a single-free-parameter theoretical model to explain the results of this experiment which matches the experimental data remarkably well.

13 pages, 4 figures

References in corpus (8)

• Strong dispersive coupling of a high finesse cavity to a micromechanical membrane
• Quantum Theory of Cavity-Assisted Sideband Cooling of Mechanical Motion
• Theory of ground state cooling of a mechanical oscillator using dynamical back-action
• Quantum Optomechanics - throwing a glance
• Quantum Noise Interference and Back-action Cooling in Cavity Nanomechanics
• Opto-Mechanics of deformable Fabry-Perot Cavities
• Quantum limit of photothermal cooling
• Mechanical mode dependence of bolometric back-action in an AFM microlever

Cited by in corpus (3)

• Tensile strained $I{n}_{x}G{a}_{1-x}P$ membranes for cavity optomechanics
• Quantum optomechanics of a multimode system coupled via photothermal and radiation pressure force
• Dueling Dynamical Backaction in a Cryogenic Optomechanical Cavity