MATT EICHENFIELD THESIS

MATT EICHENFIELD THESIS

By comparison, in microwave devices, low-loss superconducting structures have been used for gradient-force-mediated coupling to a nanomechanical oscillator of picogram mass. The optical mode of the coupled system is exquisitely sensitive to differential motion of the beams, producing optomechanical coupling right at the fundamental limit set by optical diffraction. In this thesis, two different nanometer-scale structures that use combinations of gradient and radiation pressure optical forces are described theoretically and demonstrated experimentally. The mechanical modes of the beam probed with a background sensitivity only a factor of 4 above the standard quantum limit, and the application of less than a milliwatt of optical power is shown to increase the mechanical rigidity of the system by almost an order of magnitude. More information and software credits. A Caltech Library Service. The dynamic back-action caused by electromagnetic forces radiation pressure in optical and microwave cavities is of growing interest.

No commercial reproduction, distribution, display or performance rights in this work are provided. More information and software credits. Cavity optomechanics in photonic and phononic crystals: Abstract The dynamic back-action caused by electromagnetic forces radiation pressure in optical and microwave cavities is of growing interest. The combination of the small motional mass and strong optomechanical coupling allows each trapped photon to drive motion of an acoustic mode with a force more than 15 times the weight of the structure.

This provides a powerful method for optically actuating microwave-frequency mechanical oscillators on a chip, and we demonstrate an on-chip phonon laser that emits over microwave-frequency phonons per second with a ratio of frequency to linewidth of 2 million—characteristics similar to those of the first optical lasers.

  NAON NU DIMAKSUD ESSAY

By comparison, in microwave devices, low-loss superconducting structures have been used for gradient-force-mediated coupling to a nanomechanical oscillator of picogram mass. Optics; photonics; photonic crystals; phononic crystals; acoustics; physics; optomechanics; cavity optomechanics.

A Caltech Library Service. The dynamic back-action caused by electromagnetic forces radiation pressure in optical and microwave cavities is of growing interest. We call these photonic and thesia crystal bandgap cavities optomechanical crystals. Abstract The dynamic back-action caused by electromagnetic forces radiation pressure in optical and microwave cavities is of growing interest.

The combination of the small motional mass and strong optomechanical thrsis allows each trapped photon to drive motion of an acoustic mode mattt a force more than 15 times the weight of the structure.

Cavity optomechanics in photonic and eichenfeld crystals: Because the optical and mechanical modes occupy a volume more thantimes smaller than the volume of a single human cell, the optomechanical interaction in this system is again at the fundamental limit set by optical diffraction.

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Citation Eichenfield, Matthew S. Work in the optical domain has revolved around millimeter- or micrometer-scale structures using the radiation pressure force. We discuss the future of optomechanical crystals and provide new methods eicehnfield calculating all the otptomechanical properties of the structures.

Back-action cooling, for example, is being pursued thedis a means of achieving the quantum ground state of macroscopic mechanical oscillators. We show that, in addition to a photonic bandgap cavity, the periodic patterning of the beam also produces a phononic bandgap cavity with localized mechanical modes having frequencies in the microwave regime.

No commercial reproduction, distribution, display or performance rights in this work are provided.

  ERIE CANAL AND TRANSCONTINENTAL RAILROAD ESSAY

Browse by Author

The mechanical modes of the beam probed with a background sensitivity only a factor of 4 above the standard quantum limit, and the application of less than a milliwatt of optical power is shown to increase the mechanical rigidity of the system by almost an order of magnitude. In this thesis, two different nanometer-scale structures that use combinations of gradient and radiation pressure optical forces are described theoretically and demonstrated experimentally.

With the ability to readily interconvert photons and microwave-frequency phonons on the surface of a microchip, new chip-scale technologies can be created.

matt eichenfield thesis

The second device focuses on just one of the doubly-clamped nanoscale beams of the Zipper. More information and software credits. These structures merge the fields of cavity optomechanics and thedis into nano-optomechanical systsms NOMS.

matt eichenfield thesis

The optical mode of the coupled system is exquisitely sensitive to differential motion of the beams, producing optomechanical coupling right at the fundamental limit set by optical diffraction. The miniscule effective volume of the mechanical mode corresponds to effective motional masses in the femtogram regime, which, coupled with the enormous optomechanical interaction and high optical and mechanical quality factors, allows transduction of microwave-frequency mechanical motion nearly at the standard quantum limit, with the standard quantum limit easily eichenfiled reach with simple modifications of the experimental apparatus.