Philip H. Jones, Onofrio M. Maragò & Giovanni Volpe
Fig. 12.12 — Self-induced back action traps
Self-induced back action traps. Schematic of SIBA trapping set-up employing a 310 nm aperture in a 100 nm Au film to trap 50 nm radius polystyrene spheres in water: as the particle is about to escape the nanohole, the optical potential becomes deeper and pulls it back.
Reprinted by permission from Macmillan Publishers Ltd: Juan et al., Nature Photon. 5, 349–56, copyright 2011.