activity
20142021
most citedMeasurement and control of a mechanical oscillator at its thermal decoherence rate

332 citations · 742 across the 10 of their papers we have counts for

collaborators

11 papers

physics.optics2021

Ultrahigh- on-chip silicon-germanium microresonators

Ryan Schilling, Chi Xiong, Swetha Kamlapurkar +7

We demonstrate fully crystalline, single-mode ultrahigh quality factor integrated microresonators comprising epitaxially grown SiGe waveguide cores with silicon c…

physics.app-ph2018★ 41 cited

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…

physics.app-ph2018★ 86 cited

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…

cond-mat.mes-hall2017★ 2 cited

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…

cond-mat.mes-hall2017★ 59 cited

Excitonic emission of monolayer semiconductors near-field coupled to high-Q microresonators

Clément Javerzac-Galy, Anshuman Kumar, Ryan D. Schilling +7

We present quantum yield measurements of single layer (1L-) integrated with high-Q () optical microdisk cavities, using an efficient (9…

physics.optics2017★ 21 cited

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…