Pollard, M.R.; Botchway, S.W.; Chichkov, Boris; Freeman, E.; Halsall, R.N.J.; Jenkins, D.W.K.; Loader, I.; Ovsianikov, A.; Parker, A.W.; Stevens, R.; Turchetta, R.; Ward, A.D.; Towrie, M.
(Bristol : IOP Publishing Ltd., 2010)
We describe the development of a novel force probe, controlled by multiple optical traps, with a nanometer-scale tip that protrudes outside the direct laser radiation field. We have measured forces to an accuracy of 240 ...