121 citations · 144 across the 9 of their papers we have counts for
10 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…
Fabrication and characterization of high-Q silicon nitride membrane resonators
Atkin D. Hyatt, Oscar A. Flores, Aman R. Agrawal +2
Silicon nitride membranes are a powerful and ubiquitous optomechanical resonator technology, enabling high mechanical Q, low optical loss, and enhanced optomechanical coupling via…
Ultrahigh-Q Torsional Nanomechanics through Bayesian Optimization
Atkin D. Hyatt, Aman R. Agrawal, Christian M. Pluchar +2
Recently it was discovered that torsion modes of strained nanoribbons exhibit dissipation dilution, giving a route to enhanced torque sensing and quantum optomechanics experiments.…
Ultralow loss torsion micropendula for chipscale gravimetry
C. A. Condos, J. R. Pratt, J. Manley +4
We explore a new class of chipscale torsion pendula formed by SiN nanoribbon suspensions. Owing to their unique hierarchy of gravitational, tensile, and elastic stiffness,…
Quantum-limited optical lever measurement of a torsion oscillator
Christian M. Pluchar, Aman R. Agrawal, Dalziel J. Wilson
The optical lever is a precision displacement sensor with broad applications. In principle, it can track the motion of a mechanical oscillator with added noise at the Standard Quan…
Focusing membrane metamirrors for integrated cavity optomechanics
A. R. Agrawal, J. Manley, D. Allepuz-Requena +1
We have realized a suspended, high-reflectivity focusing metamirror ( cm, ) by non-periodic photonic crystal patterning of a SiN memb…
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…
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…