5 papers
Multimode radiation pressure actuation of a mechanical resonator using a spatial mode sorter
Morgan E. Choi, Daniel Allepuz-Requena, Diego Torres-Barajas +2
Multimode optomechanical scattering is ubiquitous in free-space imaging protocols, but its radiation pressure counterpart is challenging to detect with extended objects. Here we de…
Coherent Feedback Cooling of an Ultracoherent Phononic-Crystal Membrane at Room Temperature
Luiz Couto Correa Pinto Filho, Yingxuan Chen, Frederik Werner Isaksen +6
Optomechanical systems provide a versatile platform for precision measurements and investigations of fundamental physics, where bringing macroscopic resonators into the quantum reg…
High-yield fabrication of micromirror templates via feedback-controlled laser ablation
Daniel Allepuz-Requena, Jonas Schou Neergard-Nielsen, Alexander Huck +1
We present a high-yield method for fabricating concave micromirror templates in silica using feedback-controlled CO2 laser ablation with precise in situ positioning. Real-time moni…
Mitigating nonlinear transduction noise in high-cooperativity cavity optomechanics
Daniel Allepuz-Requena, Zohran Ali, Dennis Høj +4
Coupling mechanical motion to an optical resonator enables displacement measurements approaching the standard quantum limit (SQL). However, increasing the optomechanical coupling s…
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…