Journal ArticleDOI
Harnessing optical forces in integrated photonic circuits
TLDR
This work reports the direct detection and exploitation of transverse optical forces in an integrated silicon photonic circuit through an embedded nanomechanical resonator, which enables all-optical operation of nanitechanical systems on a CMOS (complementary metal-oxide-semiconductor)-compatible platform, with substantial bandwidth and design flexibility compared to conventional electrical-based schemes.Abstract:
The force exerted by photons is of fundamental importance in light-matter interactions. For example, in free space, optical tweezers have been widely used to manipulate atoms and microscale dielectric particles. This optical force is expected to be greatly enhanced in integrated photonic circuits in which light is highly concentrated at the nanoscale. Harnessing the optical force on a semiconductor chip will allow solid state devices, such as electromechanical systems, to operate under new physical principles. Indeed, recent experiments have elucidated the radiation forces of light in high-finesse optical microcavities, but the large footprint of these devices ultimately prevents scaling down to nanoscale dimensions. Recent theoretical work has predicted that a transverse optical force can be generated and used directly for electromechanical actuation without the need for a high-finesse cavity. However, on-chip exploitation of this force has been a significant challenge, primarily owing to the lack of efficient nanoscale mechanical transducers in the photonics domain. Here we report the direct detection and exploitation of transverse optical forces in an integrated silicon photonic circuit through an embedded nanomechanical resonator. The nanomechanical device, a free-standing waveguide, is driven by the optical force and read out through evanescent coupling of the guided light to the dielectric substrate. This new optical force enables all-optical operation of nanomechanical systems on a CMOS (complementary metal-oxide-semiconductor)-compatible platform, with substantial bandwidth and design flexibility compared to conventional electrical-based schemes.read more
Citations
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Journal ArticleDOI
Cavity Optomechanics
TL;DR: The field of cavity optomechanics explores the interaction between electromagnetic radiation and nano-or micromechanical motion as mentioned in this paper, which explores the interactions between optical cavities and mechanical resonators.
Journal ArticleDOI
Electromagnetically induced transparency and slow light with optomechanics
Amir H. Safavi-Naeini,T. P. Mayer Alegre,Jasper Fuk-Woo Chan,Matt Eichenfield,Martin Winger,Qiang Lin,Jeff T. Hill,Darrick E. Chang,Oskar Painter +8 more
TL;DR: Measurements at room temperature in the analogous regime of electromagnetically induced absorption show the utility of these chip-scale optomechanical systems for optical buffering, amplification, and filtering of microwave-over-optical signals.
Journal ArticleDOI
Comparative advantages of mechanical biosensors
TL;DR: The general issues that will be critical to the success of any type of next-generation mechanical biosensor are explained, such as the need to improve intrinsic device performance, fabrication reproducibility and system integration, and the need for a greater understanding of analyte-sensor interactions on the nanoscale.
Journal ArticleDOI
Observation of strong coupling between a micromechanical resonator and an optical cavity field
Simon Gröblacher,Klemens Hammerer,Klemens Hammerer,Michael R. Vanner,Michael R. Vanner,Markus Aspelmeyer +5 more
TL;DR: The observation of optomechanical normal mode splitting is reported, which provides unambiguous evidence for strong coupling of cavity photons to a mechanical resonator, which paves the way towards full quantum optical control of nano- and micromechanical devices.
Journal ArticleDOI
A picogram- and nanometre-scale photonic-crystal optomechanical cavity
TL;DR: Measurements of an optical system consisting of a pair of specially patterned nanoscale beams in which optical and mechanical energies are simultaneously localized to a cubic-micron-scale volume and for which large per-photon optical gradient forces are realized enable the exploration of cavity optomechanical regimes.
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