Desyatnikov, Anton SShvedov, VladlenRode, Andrei VKrolikowski, WieslawKivshar, Yuri2009-06-092010-12-202009-06-092010-12-20Optics Express 17.10 (2009): 8201-82111094-4087http://hdl.handle.net/10440/434http://digitalcollections.anu.edu.au/handle/10440/434We develop a theoretical approach for describing the optical trapping and manipulation of carbon nanoclusters in air with a dual-vortex optical trap, as realized recently in experiment [V. Shvedov et al., Opt. Express 17, 5743 (2009)]. We calculate both longitudinal and transverse photophoretic forces acting on a spherical absorbing particle, and then compare our theoretical predictions with the experimental data.11 pages"OSA will grant the authors permission to deposit the publisher’s pdf from their Optics Express articles into the repository with the proper citation (reference number or journal /volume/page/year citation)." - from email received from Authorized Agent, The Optical Society, 27/05/10optical tweezers or optical manipulationsingular optics2009-04-3010.1364/OE.17.0082012015-12-08