Seminar by Ivan Favero – Niels Bohr Institute - University of Copenhagen

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Niels Bohr Institute > Calendar > 2011 > Seminar by Ivan Favero

Seminar by Ivan Favero

Mechanical oscillators of small size (micro or nanoscale) have such a small mass that they become sensitive to the mechanical action of light, when a simple light beam illuminates them. Radiation pressure, photothermal pressure or photo-striction forces are for example able to induce measurable displacements of mechanically compliant micro- mirrors. I will review some recent work that uses the mechanical action of light to actively control the dynamics of micro and nanomechanical systems. I will then present our recent work on high frequency GaAs nano-optomechanical systems, where the combination of nano-photonics and optomechanics principles offers interesting perspectives, ranging from optical cooling of mechanical systems towards their quantum regime, development of on-chip optical/ mechanical nanosensors, to the study of novel strong coupling regimes involving phonons, photons and electrons.