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A robust single-beam optical trap for a gram-scale mechanical oscillator

Altin, Paul; Nguyen, Thanh; Slagmolen, Bram; Ward, Robert; Shaddock, Daniel; McClelland, David

Description

Precise optical control of microscopic particles has been mastered over the past three decades, with atoms, molecules and nano-particles now routinely trapped and cooled with extraordinary precision, enabling rapid progress in the study of quantum phenomena. Achieving the same level of control over macroscopic objects is expected to bring further advances in precision measurement, quantum information processing and fundamental tests of quantum mechanics. However, cavity optomechanical systems...[Show more]

dc.contributor.authorAltin, Paul
dc.contributor.authorNguyen, Thanh
dc.contributor.authorSlagmolen, Bram
dc.contributor.authorWard, Robert
dc.contributor.authorShaddock, Daniel
dc.contributor.authorMcClelland, David
dc.date.accessioned2020-12-20T20:51:33Z
dc.date.available2020-12-20T20:51:33Z
dc.identifier.issn2045-2322
dc.identifier.urihttp://hdl.handle.net/1885/217811
dc.description.abstractPrecise optical control of microscopic particles has been mastered over the past three decades, with atoms, molecules and nano-particles now routinely trapped and cooled with extraordinary precision, enabling rapid progress in the study of quantum phenomena. Achieving the same level of control over macroscopic objects is expected to bring further advances in precision measurement, quantum information processing and fundamental tests of quantum mechanics. However, cavity optomechanical systems dominated by radiation pressure – so-called ‘optical springs’ – are inherently unstable due to the delayed dynamical response of the cavity. Here we demonstrate a fully stable, single-beam optical trap for a gram-scale mechanical oscillator. The interaction of radiation pressure with thermo-optic feedback generates damping that exceeds the mechanical loss by four orders of magnitude. The stability of the resultant spring is robust to changes in laser power and detuning, and allows purely passive self-locking of the cavity. Our results open up a new way of trapping and cooling macroscopic objects for optomechanical experiments.
dc.format.mimetypeapplication/pdf
dc.language.isoen_AU
dc.publisherNature Publishing Group
dc.sourceScientific Reports
dc.titleA robust single-beam optical trap for a gram-scale mechanical oscillator
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume7
dc.date.issued2017
local.identifier.absfor020699 - Quantum Physics not elsewhere classified
local.identifier.ariespublicationu4351680xPUB502
local.type.statusPublished Version
local.contributor.affiliationAltin, Paul, College of Science, ANU
local.contributor.affiliationNguyen, Thanh, College of Science, ANU
local.contributor.affiliationSlagmolen, Bram, College of Science, ANU
local.contributor.affiliationWard, Robert, College of Science, ANU
local.contributor.affiliationShaddock, Daniel, College of Science, ANU
local.contributor.affiliationMcClelland, David, College of Science, ANU
local.bibliographicCitation.issue1
local.identifier.doi10.1038/s41598-017-15179-x
dc.date.updated2020-11-23T10:08:07Z
local.identifier.scopusID2-s2.0-85032950031
CollectionsANU Research Publications

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