Transfer of a levitating nanoparticle between optical tweezers

Year: 2021

Authors: Calamai M.; Ranfagni A.; Marin F.

Autors Affiliation: Ist Nazl Fis Nucl, Sez Firenze, Via Sansone 1, I-50019 Sesto Fiorentino, FI, Italy; European Lab Nonlinear Spect LENS, Via Carrara 1, I-50019 Sesto Fiorentino, FI, Italy; CNR, INO, Lgo Enrico Fermi 6, I-50125 Florence, Italy; Univ Firenze, Dipartimento Fis & Astron, Via Sansone 1, I-50019 Sesto Fiorentino, FI, Italy.

Abstract: We demonstrate and characterize the transfer of a levitating silica nanosphere between two optical tweezers at low pressure. Both optical traps are mounted on the heads of optical fibers and placed on translation stages in vacuum chambers. Our setup allows us to physically separate the particle loading environment from the experimental chamber, where the second tweezer can position the particle inside a high finesse optical cavity. The separation prevents from spoiling the cavity mirrors and the chamber cleanliness during the particle loading phase. Our system provides a very reliable and simply reproducible protocol for preparing cavity optomechanics experiments with levitating nanoparticles, opening the way to systematic studies of quantum phenomena and easing the realization of sensing devices.

Journal/Review: AIP ADVANCES

Volume: 11 (2)      Pages from: 025246-1  to: 025246-5

More Information: We thank A. Pontin for assistance at the early stage of this work. This research was performed within the Project QuaSeRT funded by the QuantERA ERA-NET Cofund in Quantum Technologies implemented within the European Union´s Horizon 2020 Programme.
KeyWords: optomechanics
DOI: 10.1063/5.0024432

Citations: 6
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