Roadmap for Optical Tweezers 2023 

Giovanni Volpe, Onofrio M MaragoHalina Rubinsztein-DunlopGiuseppe PesceAlexander StilgoeGiorgio VolpeGeorgiy TkachenkoViet Giang TruongSile Nic ChormaicFatemeh KalantarifardParviz ElahiMikael KallAgnese CallegariManuel MarquésAntonio NevesRosalba SaijaPaul BeckJörg EismannPeter BanzerThales FernandesFrancesco PedaciWarwick BowenBasudev RoyGregor ThalhammerMonika Ritsch-MarteLaura Perez GarciaAlejandro ArzolaIsaac Perez CastilloAykut ArgunTill Moritz MuenkerBart Eduard VosPeter ReeceFan WangDavid McGloinRomain QuidantReece RobertsCyril LaplaneThomas VolzReuven GordonDag HanstorpJavier MarmolejoKishan DholakiaTongcang LiOto BrzobohatyStephen H SimpsonPavel ZemanekFelix RitortYael RoichmanValeria BobkovaRaphael WittkowskiCornelia DenzTimo BetzIlaria CristianiG V Pavan KumarPietro GucciardiMarco CapitanioLynn PatersonPhilip JonesKristine Berg-SorensenYounes BaroojiLene B OddershedeDaryl PreeceCaroline Beck AdielsAnna Chiara De LucaMaria Antonia Iatì and Grover A Swartzlander


Optical tweezers are tools made of light that enable contactless pushing, trapping, and manipulation of objects ranging from atoms to space light sails. Since the pioneering work by Arthur Ashkin in the 1970s, optical tweezers have evolved into sophisticated instruments and have been employed in a broad range of applications in life sciences, physics, and engineering. These include accurate force and torque measurement at the femtonewton level, microrheology of complex fluids, single micro- and nanoparticle spectroscopy, single-cell analysis, and statistical-physics experiments. This roadmap provides insights into current investigations involving optical forces and optical tweezers from their theoretical foundations to designs and setups. It also offers perspectives for applications to a wide range of research fields, from biophysics to space exploration.

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