Autoparametric optical drive for micromechanical oscillators

M. Zalalutdinov; A. Zehnder; A. Olkhovets; S. Turner; L. Sekaric; B. Ilic; D. Czaplewski; J. M. Parpia; H. G. Craighead

doi:10.1063/1.1388869

Autoparametric optical drive for micromechanical oscillators

M. Zalalutdinov, A. Zehnder, A. Olkhovets, S. Turner, L. Sekaric, B. Ilic, D. Czaplewski, J. M. Parpia, H. G. Craighead

Houston Methodist

Research output: Contribution to journal › Article › peer-review

96 Scopus citations

Abstract

Self-generated vibration of a disk-shaped, single-crystal silicon micromechanical oscillator was observed when the power of a continuous wave laser, focused on the periphery of the disk exceeded a threshold of a few hundred μW. With the laser power set to just below the self-generation threshold, the quality factor for driven oscillations increases by an order of magnitude from Q = 10 000 to Q_enh = 110 000. Laser heating-induced thermal stress modulates the effective spring constant via the motion of the disk within the interference pattern of incident and reflected laser beams and provides a mechanism for parametric amplification and self-excitation. Light sources of different wavelengths facilitate both amplification and damping.

Original language	English (US)
Pages (from-to)	695-697
Number of pages	3
Journal	Applied Physics Letters
Volume	79
Issue number	5
DOIs	https://doi.org/10.1063/1.1388869
State	Published - Jul 30 2001

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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abstract = "Self-generated vibration of a disk-shaped, single-crystal silicon micromechanical oscillator was observed when the power of a continuous wave laser, focused on the periphery of the disk exceeded a threshold of a few hundred μW. With the laser power set to just below the self-generation threshold, the quality factor for driven oscillations increases by an order of magnitude from Q = 10 000 to Qenh = 110 000. Laser heating-induced thermal stress modulates the effective spring constant via the motion of the disk within the interference pattern of incident and reflected laser beams and provides a mechanism for parametric amplification and self-excitation. Light sources of different wavelengths facilitate both amplification and damping.",

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AU - Zalalutdinov, M.

AU - Zehnder, A.

AU - Olkhovets, A.

AU - Turner, S.

AU - Sekaric, L.

AU - Ilic, B.

AU - Czaplewski, D.

AU - Parpia, J. M.

AU - Craighead, H. G.

PY - 2001/7/30

Y1 - 2001/7/30

N2 - Self-generated vibration of a disk-shaped, single-crystal silicon micromechanical oscillator was observed when the power of a continuous wave laser, focused on the periphery of the disk exceeded a threshold of a few hundred μW. With the laser power set to just below the self-generation threshold, the quality factor for driven oscillations increases by an order of magnitude from Q = 10 000 to Qenh = 110 000. Laser heating-induced thermal stress modulates the effective spring constant via the motion of the disk within the interference pattern of incident and reflected laser beams and provides a mechanism for parametric amplification and self-excitation. Light sources of different wavelengths facilitate both amplification and damping.

AB - Self-generated vibration of a disk-shaped, single-crystal silicon micromechanical oscillator was observed when the power of a continuous wave laser, focused on the periphery of the disk exceeded a threshold of a few hundred μW. With the laser power set to just below the self-generation threshold, the quality factor for driven oscillations increases by an order of magnitude from Q = 10 000 to Qenh = 110 000. Laser heating-induced thermal stress modulates the effective spring constant via the motion of the disk within the interference pattern of incident and reflected laser beams and provides a mechanism for parametric amplification and self-excitation. Light sources of different wavelengths facilitate both amplification and damping.

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Autoparametric optical drive for micromechanical oscillators

Abstract

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