Single-beam acoustical tweezers

Jean-Louis Thomas; Diego Baresch; Régis Marchiano

doi:10.1117/12.2252446

27 February 2017 Single-beam acoustical tweezers

Jean-Louis Thomas, Diego Baresch, Régis Marchiano

Proceedings Volume 10120, Complex Light and Optical Forces XI; 101200Y (2017) https://doi.org/10.1117/12.2252446
Event: SPIE OPTO, 2017, San Francisco, California, United States

Abstract

Dexterous contactless manipulation of microscopic matter in three dimensions is possible since the development of optical tweezers. This scheme using a single laser beam can handle particles with forces in the piconewton range with subnanometer resolution. Although various acoustical traps, mainly using standing wave fields, have been proposed over the last 50 years, several difficulties have prevented the demonstration of acoustical tweezers using a single beam of ultrasound. Deriving the analytical expression for the acoustic radiation force applied on an elastic sphere, the feasibility and the experimental demonstration of the trapping of small elastic particles with a single ultrasonic beam in three dimensions was recently achieved. These acoustical tweezers upscale by several orders of magnitude the range of forces and particle sizes available in the realm of contactless manipulation.

Citation Download Citation

Jean-Louis Thomas, Diego Baresch, and Régis Marchiano "Single-beam acoustical tweezers", Proc. SPIE 10120, Complex Light and Optical Forces XI, 101200Y (27 February 2017); https://doi.org/10.1117/12.2252446

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