603 citations · 2.4k across the 28 of their papers we have counts for
28 papers
Angular displacement readout of a mechanical oscillator with a guided mode resonance
Diego Torres-Barajas, Oscar Angulo, Aman R. Agrawal +2
Measuring the angular displacement of a mechanical oscillator is a ubiquitous task; however, the multimode nature of angular optomechanical coupling makes coherent signal enhanceme…
Sail membranes for optomechanical accelerometry
Atkin D. Hyatt, Mitul Dey Chowdhury, Mahir Chowdhury +2
Strained membrane resonators have emerged as a promising platform for optomechanical accelerometry; however, the desired combination of low frequency and high -mass product requ…
Sub-ppm Nanomechanical Absorption Spectroscopy of Silicon Nitride
Andrew T. Land, Mitul Dey Chowdhury, Aman R. Agrawal +1
Material absorption is a key limitation in nanophotonic systems; however, its characterization is often obscured by scattering and diffraction loss. Here we show that nanomechanica…
Thermal intermodulation backaction in a high-cooperativity optomechanical system
Christian M. Pluchar, Aman R. Agrawal, Dalziel J. Wilson
The pursuit of room temperature quantum optomechanics with tethered nanomechanical resonators faces stringent challenges owing to extraneous mechanical degrees of freedom. An impor…
Entanglement-Enhanced Optomechanical Sensing
Yi Xia, Aman R. Agrawal, Christian M. Pluchar +5
Optomechanical systems have been exploited in ultrasensitive measurements of force, acceleration, and magnetic fields. The fundamental limits for optomechanical sensing have been e…
Entanglement-enhanced optomechanical sensor array for dark matter searches
Anthony J. Brady, Xin Chen, Kewen Xiao +8
The nature of dark matter is one of the most important open questions in modern physics. The search for dark matter is challenging since, besides gravitational interaction, it feeb…
Optomechanical cooling and inertial sensing at low frequencies
Yanqi Zhang, Adam Hines, Dalziel Wilson +1
An inertial sensor design is proposed in this paper to achieve high sensitivity and large dynamic range in the sub-Hz frequency regime. High acceleration sensitivity is obtained by…
Membrane-based Optomechanical Accelerometry
Mitul Dey Chowdhury, Aman R. Agrawal, Dalziel J. Wilson
Optomechanical accelerometers promise quantum-limited readout, high detection bandwidth, self-calibration, and radiation pressure stabilization. We present a simple, scalable platf…
Nanoscale torsional dissipation dilution for quantum experiments and precision measurement
Jon R. Pratt, Aman R. Agrawal, Charles A. Condos +3
We show that torsion resonators can experience massive dissipation dilution due to nanoscale strain, and draw a connection to a century-old theory from the torsion balance communit…
Searching for vector dark matter with an optomechanical accelerometer
Jack Manley, Mitul Dey Chowdhury, Daniel Grin +2
We consider using optomechanical accelerometers as resonant detectors for ultralight dark matter. As a concrete example, we describe a detector based on a silicon nitride membrane…
Thermal intermodulation noise in cavity-based measurements
Sergey A. Fedorov, Alberto Beccari, Amirali Arabmoheghi +3
Thermal frequency fluctuations in optical cavities limit the sensitivity of precision experiments ranging from gravitational wave observatories to optical atomic clocks. Convention…
Towards cavity-free ground state cooling of an acoustic-frequency silicon nitride membrane
Christian M. Pluchar, Aman Agrawal, Edward Schenk +1
We demonstrate feedback cooling of a millimeter-scale, 40 kHz SiN membrane from room temperature to 5 mK (3000 phonons) using a Michelson interferometer, and discuss the challenges…
Searching for scalar dark matter with compact mechanical resonators
Jack Manley, Russell Stump, Dalziel Wilson +2
We explore the viability of laboratory-scale mechanical resonators as detectors for ultralight scalar dark matter. The signal we investigate is an atomic strain due to modulation o…
Optomechanics with one-dimensional gallium phosphide photonic crystal cavities
Katharina Schneider, Yannick Baumgartner, Simon Hönl +5
Gallium phosphide offers an attractive combination of a high refractive index ( for vacuum wavelengths up to 4 μm) and a wide electronic bandgap (2.26 eV), enabling optical ca…
Clamp-tapering increases the quality factor of stressed nanobeams
Mohammad J. Bereyhi, Alberto Beccari, Sergey A. Fedorov +5
Stressed nanomechanical resonators are known to have exceptionally high quality factors () due to the dilution of intrinsic dissipation by stress. Typically, the amount of dissi…
Integrated gallium phosphide nonlinear photonics
Dalziel J. Wilson, Katharina Schneider, Simon Hoenl +3
Gallium phosphide (GaP) is an indirect bandgap semiconductor used widely in solid-state lighting. Despite numerous intriguing optical properties---including large and $χ^…
Generalized dissipation dilution in strained mechanical resonators
Sergey A. Fedorov, Nils J. Engelsen, Amir H. Ghadimi +4
Mechanical resonators with high quality factors are of relevance in precision experiments, ranging from gravitational wave detection and force sensing to quantum optomechanics. Bea…
Strain engineering for ultra-coherent nanomechanical oscillators
Amir H. Ghadimi, Sergey A. Fedorov, Nils J. Engelsen +4
Elastic strain engineering utilizes stress to realize unusual material properties. For instance, strain can be used to enhance the electron mobility of a semiconductor, enabling mo…
Evidence for structural damping in a high-stress silicon nitride nanobeam and its implications for quantum optomechanics
S. A. Fedorov, V. Sudhir, R. Schilling +3
We resolve the thermal motion of a high-stress silicon nitride nanobeam at frequencies far below its fundamental flexural resonance (3.4 MHz) using cavity-enhanced optical interfer…
Quantum correlations of light due to a room temperature mechanical oscillator for force metrology
Vivishek Sudhir, Ryan Schilling, Sergey A. Fedorov +3
The coupling of laser light to a mechanical oscillator via radiation pressure leads to the emergence of quantum mechanical correlations between the amplitude and phase quadrature o…
Dissipation engineering of high-stress silicon nitride nanobeams
A. H. Ghadimi, D. J. Wilson, T. J. Kippenberg
High-stress SiN nanoresonators have become an attractive choice for electro- and optomechanical devices. Membrane resonators can achieve quality factor () - frequency ($…
Appearance and disappearance of quantum correlations in measurement-based feedback control of a mechanical oscillator
Vivishek Sudhir, Dalziel J. Wilson, Ryan Schilling +5
Quantum correlations between imprecision and back-action are a hallmark of continuous linear measurements. Here we study how measurement-based feedback can be used to improve the v…
Near-field integration of a SiN nanobeam and a SiO microcavity for Heisenberg-limited displacement sensing
Ryan Schilling, Hendrik Schütz, Amir Ghadimi +3
Placing a nanomechanical object in the evanescent near-field of a high- optical microcavity gives access to strong gradient forces and quantum-noise-limited displacement readout…
A strongly-coupled -type micromechanical system
Hajime Okamoto, Ryan Schilling, Hendrik Schütz +4
We study a classical -type three-level system based on three high- micromechanical beam resonators embedded in a gradient electric field. By modulating the strength of the fi…