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RADIATION PRESSURE AT THE NANOSCALE: CLASSICAL AND QUANTUM-OPTICAL APPLICATIONS Oskar Painter Thomas J. Watson, Sr., Laboratory of Applied Physics, California Institute of Technology In the last several years, rapid advances have been made in the field of cavity optomechanics, in which the usually feeble radiation pressure force of light is used to manipulate (and precisely monitor) mechanical motion. These advances have moved the field from the multi-km interferometer of a gravitational wave observatory, to the optical table top, and now all the way down to a silicon microchip. In this talk I will describe these advances, and discuss our own work to realize radiation pressure within nanoscale structures in the form of photonic and phononic crystals (dubbed optomechanical crystals) and coupled microring cavities. Applications of these new nano-opto-mechanical systems include: all-optically tunable photonics, optically powered RF and microwave oscillators, and precision force/acceleration and mass sensing. Additionally there is the potential for these nanomechanical systems to be used in hybrid quantum networks, enabling storage or transfer of quantum information between disparate quantum systems. I will introduce several conceptual ideas regarding phonon-photon translation and slow light effects which may be used in such quantum settings, and discuss recent experiments to realize them in practice. 16
THE PHOTON BLOCKADE EFFECT IN OPTOMECHANICAL SYSTEMS Peter Rabl Iqoqi, Austrian Academy of Sciences The implementation of strong optical non-linearities on a single photon level is one of the central themes in quantum optics and over the past years many setting based on atomic cavity QED have been discussed to achieve this goal. A very different type of light-matter interactions occurs in optomechanical systems where photons are coupled to mechanical motion via radiation pressure forces. Recent experiments have shown that the single photon strong coupling regime of optomechanics is within reach and might open a completely new route towards non-linear quantum optics. As a most pronounced signature of strong photon interactions I will discuss in this talk the appearance of a photon blockade effect in weakly driven optomechanical systems. I will show that an intuitive interpretation of this effect can be given in terms of displaced oscillator states and identify the parameter regime which is required to observe non-classical anti-bunching and photon blockade effects in experiments. 17
Page 1 and 2: Table of Contents WORKSHOP SCHEDULE
Page 3 and 4: Schedule MONDAY, FEBRUARY 7 Phillip
Page 5 and 6: JAMIL ABO-SHAEER PARTICIPANTS Darpa
Page 7 and 8: MONIKA SCHLEIER-SMITH SWATI SINGH P
Page 9 and 10: TOWARDS QUANTUM SUPERPOSITIONS OF A
Page 11 and 12: LINEAR AND QUADRATIC OPTOMECHANICS
Page 13 and 14: OPTOMECHANICS OF A QUANTUM DEGENERA
Page 15: NONLINEAR OPTOMECHANICS: QUADRATIC
Page 19 and 20: OPTOMECHANICAL MATTER-WAVE INTERFER
Page 21 and 22: CAVITY OPTOMECHANICS: BEYOND THE GR
Page 23 and 24: CIRCUIT CAVITY ELECTROMECHANICS IN
Page 25 and 26: RADIATION PRESSURE AND QUANTUM NOIS
Page 27 and 28: ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !

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