3D micro-printed hybrid photonic structure for single-fiber Optical Tweezers

Innem V.A.K. Reddy, Andrea Bertoncini, Carlo Liberale

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Optical tweezers (OT) are non-destructive, contactless tools that use light to trap and manipulate microscopic objects. They have applications in diverse fields, particularly in biomedicine and physics [1]. Due to their unique applications and the ability to analyze sub-micron biological systems, the Nobel prize for Physics in 2018 was awarded to Arthur Ashkin, the inventor of OT. Conventional single-beam OT setups require the focusing of a laser beam with a high-Numerical Aperture (NA) objective. However, these setups are bulky and restrict the trapping capabilities to table-top arrangements. The miniaturization of OT to be implemented with a single optical fiber is vital as it opens up new possibilities such as trapping in turbid media or in-vivo. Several groups demonstrated single-fiber OT but the proposed approaches use non-standard fibers and grant only limited design flexibility in controlling the optical trap geometry [2].
Original languageEnglish (US)
Title of host publication2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)
ISBN (Print)9781665418768
StatePublished - Jun 21 2021

Bibliographical note

KAUST Repository Item: Exported on 2021-11-15


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