Issue |
Europhys. Lett.
Volume 66, Number 3, May 2004
|
|
---|---|---|
Page(s) | 318 - 323 | |
Section | General | |
DOI | https://doi.org/10.1209/epl/i2003-10224-x | |
Published online | 01 April 2004 |
Optical manipulation of intrinsic localized vibrational energy in cantilever arrays
1
Laboratory of Atomic and Solid State Physics, Cornell University Ithaca, NY 14853-2501, USA
2
Cornell Nanofabrication Facility, Cornell University Ithaca, NY 14853-5403, USA
3
Department of Applied and Engineering Physics, Cornell University Ithaca, NY 14853-3501, USA
Received:
1
September
2003
Accepted:
3
March
2004
Optically-induced real-time impurity modes are used to shepherd intrinsic localized vibrational modes (discrete breathers) along micromechanical arrays via either attractive or repulsive interactions. Adding an electrode to the cantilever array provides control of the sign of lattice anharmonicity, hence allowing both hard and soft nonlinearities to be studied. A number of dynamical effects are demonstrated and explained, including the optical tweezing of localized vibrational energy in a nonlinear lattice.
PACS: 05.45.-a – Nonlinear dynamics and nonlinear dynamical systems / 63.20.Pw – Localized modes / 85.85.+j – Micro- and nano-electromechanical systems (MEMS/NEMS) and devices
© EDP Sciences, 2004
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