Jan 162012
 

optomecanica_physicae

Optomecânica de microcavidades: do quente ao frio

Thiago P. Mayer Alegre, Gustavo S. Wiederhecker

Physicae, 10, (2011)
doi:10.5196/physicae.10.1

O efeito mecânico da luz é amplamente usado em armadilhas ou “pinças” ópticas usadas na manipulação de micro partículas como células vivas, DNA e bactérias. Por este mesmo efeito, as paredes refletoras de uma cavidade óptica são constantemente submetidas a uma pequena força gerada pelo campo eletromagnético confinado na cavidade. Continue reading »

 Posted by at 10:54 am
Dec 162011
 

Synchronization of Micromechanical Oscillators Using Light

Mian Zhang, Gustavo Wiederhecker, Sasikanth Manipatruni, Arthur Barnard, Paul McEuen, and Michal Lipson

arXiv:1112.3636

Synchronization, the emergence of spontaneous order in coupled systems, is of fundamental importance in both physical and biological systems. We demonstrate the synchronization of two dissimilar silicon nitride micromechanical oscillators, that are spaced apart by a few hundred nanometers and are coupled through optical radiation field. The tunability of the optical coupling between the oscillators enables one to externally control the dynamics and switch between coupled and individual oscillation states. These results pave a path towards reconfigurable massive synchronized oscillator networks.

Nov 222011
 

chipscale_oe_mw

A chip-scale integrated cavity-electro-optomechanics platform

M. Winger, T. D. Blasius, T. P. Mayer Alegre, A. H. Safavi-Naeini, S. Meenehan, J. Cohen, S. Stobbe, and O. Painter

Optics Express, 19, 24905-24921 (2011)
doi:10.1364/OE.19.024905

We present an integrated optomechanical and electromechanical nanocavity, in which a common mechanical degree of freedom is coupled to an ultrahigh-Q photonic crystal defect cavity and an electrical circuit. Continue reading »

Oct 062011
 

cooldown_nat_ta

Laser cooling of a nanomechanical oscillator into its quantum ground state

Jasper Chan, T. P. Mayer Alegre, Amir H. Safavi-Naeini, Jeff T. Hill, Alex Krause, Simon Gröblacher, Markus Aspelmeyer & Oskar Painter

Nature 478, 89-92 (06 October 2011)
doi:10.1038/nature10461

Abstract

The simple mechanical oscillator, canonically consisting of a coupled mass–spring system, is used in a wide variety of sensitive measurements, including the detection of weak forces and small masses. Continue reading »

Sep 092011
 

optomechanics_nat_gsw

Controlling photonic structures using optical forces

Gustavo S. Wiederhecker, Long Chen, Alexander Gondarenko & Michal Lipson

Nature 462, 633-636 (3 December 2009)
doi:10.1038/nature08584

Abstract

The use of optical forces to manipulate small objects is well known. Applications include the manipulation of living cells Continue reading »

Sep 092011
 

eit_nat_ta

Electromagnetically induced transparency and slow light with optomechanics

Amir H. Safavi-Naeini, Thiago P. Mayer Alegre, Jasper Chan, Matt Eichenfield, Martin Winger, Qiang Lin, Jeff T. Hill, Darrick E. Chang and Oskar Painter

Nature 472, 69–73 (07 April 2011)
doi:10.1038/nature09933

Abstract

Controlling the interaction between localized optical and mechanical excitations has recently become possible Continue reading »

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