Results 51 to 60 of about 1,356 (161)

Constraining modified gravity with quantum optomechanics

open access: yesNew Journal of Physics, 2022
We derive the best possible bounds that can be placed on Yukawa- and chameleon-like modifications to the Newtonian gravitational potential with a cavity optomechanical quantum sensor.
Sofia Qvarfort   +2 more
doaj   +1 more source

Brillouin Dynamic Gratings—A Practical Form of Brillouin Enhanced Four Wave Mixing in Waveguides: The First Decade and Beyond

open access: yesSensors, 2018
Brillouin-Enhanced Four-Wave-Mixing techniques, which couple four optical beams through Brillouin nonlinearity, have gained popularity in the 1980’s largely owing to their phase conjugation properties.
Arik Bergman, Moshe Tur
doaj   +1 more source

Optomechanically Induced Birefringence and Optomechanically Induced Faraday Effect

open access: yesPhysical Review Letters, 2019
We demonstrate an optomechanical platform where optical mode conversion mediated by mechanical motion enables the arbitrary tailoring of polarization states of propagating light fields. Optomechanical interactions are realized in a Fabry-Pérot resonator, which naturally supports two polarization-degenerate states while an optical control field induces ...
Duggan, Robert   +3 more
openaire   +3 more sources

Slot-mode optomechanical crystals: a versatile platform for multimode optomechanics

open access: yesOptica, 2015
We demonstrate slot-mode optomechanical crystals, a class of device in which photonic and phononic crystal nanobeam resonators separated by a narrow slot are coupled through optomechanical interactions. In these geometries, nanobeam pairs are patterned so that a mechanical breathing mode is confined at the center of one beam, and a high quality factor (
Grutter, Karen E.   +2 more
openaire   +3 more sources

Inverse microparticle design for enhanced optical trapping and detection efficiency in all six degrees of freedom

open access: yesJPhys Photonics
Achieving quantum-limited motional control of optically trapped particles beyond the sub-micrometer scale is an outstanding problem in levitated optomechanics.
Moosung Lee   +3 more
doaj   +1 more source

Damping and non-linearity of a levitating magnet in rotation above a superconductor

open access: yesNew Journal of Physics, 2014
We study the dissipation of moving magnets in levitation above a superconductor. The rotation motion is analyzed using optical tracking techniques. It displays a remarkable regularity together with long damping time up to several hours.
J Druge   +4 more
doaj   +1 more source

Combined feedback and sympathetic cooling of a mechanical oscillator coupled to ultracold atoms

open access: yesNew Journal of Physics, 2018
A promising route to novel quantum technologies are hybrid quantum systems, which combine the advantages of several individual quantum systems. We have realized a hybrid atomic-mechanical experiment consisting of a Si _3 N _4 membrane oscillator ...
Philipp Christoph   +6 more
doaj   +1 more source

Optomechanical trampoline resonators

open access: yesOptics Express, 2011
We report on the development of optomechanical "trampoline" resonators composed of a tiny SiO(2)/Ta(2)O(5) dielectric mirror on a silicon nitride micro-resonator. We observe optical finesses of up to 4 × 10(4) and mechanical quality factors as high as 9 × 10(5) in relatively massive (~100 ng) and low frequency (10-200 kHz) devices.
Kleckner, D.   +5 more
openaire   +3 more sources

Probing wave function collapse models with a classically driven mechanical oscillator

open access: yesNew Journal of Physics, 2016
We show that the interaction of a pulsed laser light with a mechanical oscillator through the radiation pressure results in an opto-mechanical entangled state in which the photon number is correlated with the oscillator position.
Melvyn Ho   +3 more
doaj   +1 more source

Strong squeezing via phonon mediated spontaneous generation of photon pairs

open access: yesNew Journal of Physics, 2014
We propose a scheme for generating squeezed light by using a double-cavity optomechanical system driven by a blue detuned laser in one cavity and by a red detuned laser in the other.
Kenan Qu, G S Agarwal
doaj   +1 more source

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