303 citations · 1k across the 26 of their papers we have counts for
26 papers
Ultrawide Bandwidth Optomechanical Magnetometry Using Flux Concentration
Benjamin J. Carey, Nathaniel Bawden, Fernando Gottardo +4
Low-frequency magnetic fields carry vital information for neuroscience, navigation, and Earth science. However, they are generally weak, making it challenging to measure them with…
Solitary waves in a phononic integrated circuit
Timothy M. F. Hirsch, Xiaoya Jin, Nicolas P. Mauranyapin +6
Solitons are universal nonlinear excitations that appear in settings as varied as optics, water waves, and quantum gases [1-5]. While reduced models of soliton dynamics are well es…
Silicon-photonic optomechanical magnetometer
Fernando Gottardo, Benjamin J. Carey, Nathaniel Bawden +7
Optomechanical sensors enable exquisitely sensitive force measurements, with emerging applications across quantum technologies, standards, fundamental science, and engineering. Mag…
Membrane phononic integrated circuits
Timothy M. F. Hirsch, Nicolas P. Mauranyapin, Erick Romero +7
Phononic circuits constructed from high tensile stress membranes offer a range of desirable features such as high acoustic confinement, controllable nonlinearities, low mass, compa…
Nanomechanical Error Correction
Xiaoya Jin, Christopher G. Baker, Erick Romero +5
Error correction is essential for modern computing systems, enabling information to be processed accurately even in the presence of noise. Here, we demonstrate a new approach which…
Precision optomechanical accelerometer via hybrid test mass integration
Nathaniel Bawden, Benjamin J. Carey, Poh-Meng Yeo +7
Accelerometers offer motion sensing capabilities across a wide range of areas, enabling navigational awareness in consumer goods and defense applications, and playing a key role in…
Nonlinear wave dynamics on a chip
Matthew T. Reeves, Walter W. Wasserman, Raymond A. Harrison +7
Shallow water waves are a striking example of nonlinear hydrodynamics, giving rise to phenomena such as tsunamis and undular waves. These dynamics are typically studied in hundreds…
Fibre-coupled photonic crystal hydrophone
Lauren R. McQueen, Nathaniel Bawden, Benjamin J. Carey +3
Many applications, including medical diagnostics, sonar and navigation rely on the detection of acoustic waves. Photonic hydrophones demonstrate comparable sensitivity to piezoelec…
Silicon Double-Disk Optomechanical Resonators from Wafer-Scale Double-Layered Silicon-on-Insulator
Amy Navarathna, Benjamin J. Carey, James S. Bennett +2
Whispering gallery mode (WGM) optomechanical resonators are a promising technology for the simultaneous control and measurement of optical and mechanical degrees of freedom at the…
Emergent Error Correcting States in Networks of Nonlinear Oscillators
Xiaoya Jin, Christopher G. Baker, Erick Romero +4
Networks of nonlinear oscillators can exhibit complex collective behaviour ranging from synchronised states to chaos. Here, we simulate the dynamics of three coupled Duffing oscill…
Quantitative Profilometric Measurement of Magnetostriction in Thin-Films
Hamish Greenall, Benjamin J. Carey, Douglas Bulla +5
A DC non-contact method for measuring the magnetostrictive strain in thin-films is demonstrated, achieving a state-of-the-art sensitivity of 0.1 ppm. In this method, an optical pro…
Directional emission in an on-chip acoustic waveguide
Timothy M. F. Hirsch, Nicolas P. Mauranyapin, Erick Romero +4
Integrated acoustic circuits leverage guided acoustic waves for applications ranging from radio-frequency filters to quantum state transfer, biochemical sensing and nanomechanical…
Waveguide-integrated and portable optomechanical magnetometer
Fernando Gotardo, Benjamin J. Carey, Hamish Greenall +7
Optomechanical magnetometers enable highly sensitive magnetic field sensing. However, all such magnetometers to date have been optically excited and read-out either via free space…
Optomechanical dark matter instrument for direct detection
Christopher G. Baker, Warwick P. Bowen, Peter Cox +3
We propose the Optomechanical Dark-matter INstrument (ODIN), based on a new method for the direct detection of low-mass dark matter. We consider dark matter interacting with superf…
Cascading of Nanomechanical Resonator Logic
T. Jin, C. G. Baker, E. Romero +4
Nanomechanical systems have been proposed as an alternative computing platform for high radiation environments, where semiconductor electronics traditionally fail, as well as to al…
Engineered entropic forces allow ultrastrong dynamical backaction
Andreas Sawadsky, Raymond A. Harrison, Glen I. Harris +4
When confined within an optical cavity, light can exert strong radiation pressure forces. Combined with dynamical backaction, this enables important processes such as laser cooling…
Testing spontaneous wavefunction collapse with quantum electromechanics
Germain Tobar, Stefan Forstner, Arkady Fedorov +1
Theories of spontaneous wavefunction collapse offer an explanation of the possible breakdown of quantum mechanics for macroscopic systems. However, the challenge of resolving predi…
Cryogenic and hermetically sealed packaging of photonic chips for optomechanics
W. W. Wasserman, R. A. Harrison, G. I. Harris +4
We demonstrate a hermetically sealed packaging system for integrated photonic devices at cryogenic temperatures with plug-and-play functionality. This approach provides the ability…
Precision Magnetometers for Aerospace Applications
James S. Bennett, Brian E. Vyhnalek, Hamish Greenall +6
Aerospace technologies are crucial for modern civilization; space-based infrastructure underpins weather forecasting, communications, terrestrial navigation and logistics, planetar…
Ultrasensitive optical magnetometry at the microscale
Stefan Forstner, Eoin Sheridan, Joachim Knittel +4
Recent advances in optical magnetometry have achieved record sensitivity at both macro- and nano-scale. Combined with high bandwidth and non-cryogenic operation, this has enabled m…
Microphotonic Forces From Superfluid Flow
D. L. McAuslan, G. I. Harris, C. Baker +4
In cavity optomechanics, radiation pressure and photothermal forces are widely utilized to cool and control micromechanical motion, with applications ranging from precision sensing…
Laser cooling and control of excitations in superfluid helium
G. I. Harris, D. L. McAuslan, E. Sheridan +3
Superfluidity is an emergent quantum phenomenon which arises due to strong interactions between elementary excitations in liquid helium. These excitations have been probed with gre…
Strong thermomechanical squeezing via weak measurement
Alex Szorkovszky, George A. Brawley, Andrew C. Doherty +1
We experimentally surpass the 3dB limit to steady state parametric squeezing of a mechanical oscillator. The localization of a AFM cantilever, achieved by optimal estimation, is en…
Position Estimation of a Parametrically Driven Optomechanical System
Alex Szorkovszky, Andrew C. Doherty, Glen I. Harris +1
We study the position estimation of a mechanical oscillator undergoing both detuned parametric amplification and continuous quantum measurement. This model, which can be utilised t…