(a)–(d) Dark-field images of an optically trapped gold nanowire evolving from (a) axially trapped to (d) trapped at one end. (e) Gold nanowire optically trapped in the middle. The arrow represents the direction of polarisation. (f)–(h) Illustration of the orientation of the nanowire in the traps: (f) corresponds to the orientation in (a), (g) to the one in (d) and (h) to the one in (e).
Reprinted with permission from Yan et al., ACS Nano 7, 8794–800. Copyright (2013) American Chemical Society.
Fig. 22.2 — Trapping of plasmonic nanowires