On-chip interferometric detection of nanomechanical motion

Nano Letters
Quirin P UnterreithmeierJörg P Kotthaus

Abstract

An integrable on-chip displacement transduction of nanomechenical motion is developed that senses the modulation of the optical near-field of an illuminated vibrating string with a nearby Schottky photodiode. This scheme poses no restrictions on resonator material and avoids additional damping. The achieved sensitivity of 1 pm/Hz(1/2) enables the detection of Brownian motion of our mechanical resonators at room temperature. Implementing a feedback scheme of the detected signal into the electrical actuation, we demonstrate self-oscillation.

References

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Jul 26, 2008·Nature Nanotechnology·H J MaminD Rugar
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Apr 28, 2009·Nature·Quirin P UnterreithmeierJörg P Kotthaus
Jun 3, 2009·Nature·Matt EichenfieldOskar Painter
Jun 6, 2009·Nano Letters·Andreas K HüttelHerre S J van der Zant
Jun 6, 2009·Nature Nanotechnology·Mo LiH X Tang
Jul 8, 2009·Nature Nanotechnology·A K NaikM L Roukes

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Citations

Oct 27, 2015·Sensors·Wen-Ming ZhangGuang Meng
Jul 30, 2015·Nanotechnology·Christopher F ReicheThomas Mühl

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