Selective trapping of multiple particles by volume speckle field.
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We suggest a new approach for selective trapping of light absorbing particles in gases by multiple optical bottle-beam-like traps created by volume speckle field. We demonstrate stable simultaneous confinement of a few thousand micro-particles in air with a single lowpower laser beam. The size distribution of trapped particles exhibits a narrow peak near the average size of an optical speckle. Thus, the speckleformed traps act as a sieve with the holes selecting particles of a similar size.
author list (cited authors)
Shvedov, V. G., Rode, A. V., Izdebskaya, Y. V., Desyatnikov, A. S., Krolikowski, W., & Kivshar, Y. S.
complete list of authors
Shvedov, Vladlen G||Rode, Andrei V||Izdebskaya, Yana V||Desyatnikov, Anton S||Krolikowski, Wieslaw||Kivshar, Yuri S