title: Optical-trap force transducer that operates by direct measurement of light momentum.
authors.affiliation: Department of Physics, Howard Hughes Medical Institute, University of California, Berkeley, California 94720, USA.
authors.forename: Steven B
authors.initials: SB
authors.lastname: Smith
authors.forename: Yujia
authors.initials: Y
authors.lastname: Cui
authors.forename: Carlos
authors.initials: C
authors.lastname: Bustamante
mesh_terms: D002623:Chemistry Techniques, Analytical / Q000295:instrumentation* / Q000379:methods*; D008863:Microspheres; D014159:Transducers