"4"^^ . "Sub-micron particle organization by self-imaging of non-diffracting beams" . . . "Koll\u00E1rov\u00E1, V." . . . . . . . "nondiffracting beams; Bessel beams; colloids; optical manipulation; optical trapping"@en . "23"^^ . "Sub-micron particle organization by self-imaging of non-diffracting beams"@en . . . . "We present the first theoretical and experimental study of dielectric sub-micron particle behaviour in an optical field generated by interference of co-propagating non-diffracting beams of different propagation constants. In such a field, there are periodic oscillations of the on-axial intensity maxima (self-imaging) that are frequently mentioned as useful for optical trapping. We show that in three dimensions this is true only for very small particles and the increasing number of interfering beams does not enable confinement of substantially bigger particles under the studied conditions. Experimentally, we succeeded in optical confinement of beads radii from 100 nm up to 300 nm but only with the help of fluid flow against the beams propagation. We observed self-organization of the particles into the periodic 1D array with the interparticle distance equal to 7.68 micrometers."@en . "Zem\u00E1nek, Pavel" . "8" . "RIV/68081731:_____/06:00043814" . "43" . "Organizace submikrometrov\u00FDch objekt\u016F s vyu\u017Eit\u00EDm znovu-zobrazov\u00E1n\u00ED nedifrak\u010Dn\u00EDch svazk\u016F"@cs . . "Bouchal, J." . . "DE - Spolkov\u00E1 republika N\u011Bmecko" . "Sub-micron particle organization by self-imaging of non-diffracting beams" . . . "New Journal of Physics" . "1;23" . . . . "[02A37A4B8204]" . "We present the first theoretical and experimental study of dielectric sub-micron particle behaviour in an optical field generated by interference of co-propagating non-diffracting beams of different propagation constants. In such a field, there are periodic oscillations of the on-axial intensity maxima (self-imaging) that are frequently mentioned as useful for optical trapping. We show that in three dimensions this is true only for very small particles and the increasing number of interfering beams does not enable confinement of substantially bigger particles under the studied conditions. Experimentally, we succeeded in optical confinement of beads radii from 100 nm up to 300 nm but only with the help of fluid flow against the beams propagation. We observed self-organization of the particles into the periodic 1D array with the interparticle distance equal to 7.68 micrometers." . "\u010Ci\u017Em\u00E1r, Tom\u00E1\u0161" . . "Sub-micron particle organization by self-imaging of non-diffracting beams"@en . "RIV/68081731:_____/06:00043814!RIV07-AV0-68081731" . . "2"^^ . "502376" . "Organizace submikrometrov\u00FDch objekt\u016F s vyu\u017Eit\u00EDm znovu-zobrazov\u00E1n\u00ED nedifrak\u010Dn\u00EDch svazk\u016F"@cs . "1367-2630" . "P(FT-TA2/059), Z(AV0Z20650511)" . "P\u0159edkl\u00E1d\u00E1me prvn\u00ED teoretickou a experiment\u00E1ln\u00ED studii o chov\u00E1n\u00ED submikrometrov\u00FDch \u010D\u00E1stic um\u00EDst\u011Bn\u00FDch do optick\u00E9ho pole vytvo\u0159en\u00E9ho interferenc\u00ED soub\u011B\u017En\u00FDch nedifrak\u010Dn\u00EDch svazk\u016F s r\u016Fzn\u00FDmi konstantami \u0161\u00ED\u0159en\u00ED. Takov\u00E9 pole, kde se vyskytuj\u00ED periodick\u00E9 oscilace osov\u00E9 optick\u00E9 intenzity (znovu-zobrazov\u00E1n\u00ED), je \u010Dasto zmi\u0148ov\u00E1no jako u\u017Eite\u010Dn\u00FD n\u00E1stroj pro optick\u00E9 zachyt\u00E1v\u00E1n\u00ED. Ukazujeme, \u017Ee v p\u0159\u00EDpad\u011B t\u0159\u00ED sm\u011Br\u016F to plat\u00ED pouze pro velmi mal\u00E9 objekty a rostouc\u00ED po\u010Det interferuj\u00EDc\u00EDch svazk\u016F neumo\u017En\u00ED zachyt\u00E1v\u00E1n\u00ED podstatn\u011B v\u011Bt\u0161\u00EDch objekt\u016F za studovan\u00FDm podm\u00EDnek. Experiment\u00E1ln\u011B jsme usp\u011Bli v optick\u00E9m zachycen\u00ED kuli\u010Dek o polom\u011Brech od 100 do 300 nm, ale pouze s vyu\u017Eit\u00EDm proudu kapaliny proti \u0161\u00ED\u0159en\u00ED svazk\u016F. Pozorovali jsme samoorganizov\u00E1n\u00ED \u010D\u00E1stic to periodick\u00E9ho jednodimenzion\u00E1ln\u00EDho pole, kde vzd\u00E1lenost mezi sousedn\u00EDmi \u010D\u00E1sticemi byla 7,68 mikrometr\u016F."@cs .