Trapping of a microsphere pendulum resonator in an optical potential

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Trapping of a microsphere pendulum resonator in an optical potential

Ward, Jonathan M.; Wu, Yuqiang; Minogin, Vladimir G.; Nic Chormaic, Síle
Date: 2009-05-19
Copyright: © 2009 The American Physical Society. WARD, J. M., WU, Y., MINOGIN, V. G. & NIC CHORMAIC, S. Physical Review A, 79, 053839.
Related: http://link.aps.org/doi/10.1103/PhysRevA.79.053839
Citation: WARD, J. M., WU, Y., MINOGIN, V. G. & NIC CHORMAIC, S. 2009. Trapping of a microsphere pendulum resonator in an optical potential. Physical Review A, 79 (5), 053839.
Published Version: 10.1103/PhysRevA.79.053839

Abstract:

We propose a method to spatially confine or corral the movements of a micropendulum via the optical forces produced by two simultaneously excited optical modes of a photonic molecule comprising two microspherical cavities. We discuss how the cavity-enhanced optical force generated in the photonic molecule can create an optomechanical potential of about 10 eV deep and 30 pm wide, which can be used to trap the pendulum at any given equilibrium position by a simple choice of laser frequencies. This result presents opportunities for very precise all-optical self-alignment of microsystems.

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