Scientific Results

Fabrication and test of polymeric microaxicons

Year: 2012

Authors: Merola F., Coppola S., Vespini V., Grilli S., Ferraro P., Balduzzi D., Galli A., Puglisi R.

Autors Affiliation: Istituto Nazionale di Ottica (CNR-INO), Via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy;
Universit√† degli Studi di Napoli “Federico II”, Piazzale Tecchio 80, 80125 Napoli, Italy;
Istituto Sperimentale Italiano “Lazzaro Spallanzani”, Localit√† La Quercia, 26027 Rivolta d’Adda

Abstract: A digital holographic characterization of Bessel beams produced by polymeric microaxicons is reported. Both intensity and phase of the beam can be numerically reconstructed in whichever point starting from a single acquired hologram. Optical parameters such as the full width at half maximum, the focal length and the depth of focus of the axicon lens are experimentally measured. The Bessel beam exiting from the axicon, with a very large depth of focus with respect to that of a Gaussian beam, is successfully exploited for optical trapping of micrometric objects.

Journal/Review: PROCEEDINGS OF SPIE

Volume: 8428      Pages from: 84280P  to: 84280P

KeyWords: microaxicon; Bessel beam; optical trapping; digital holography;
DOI: 10.1117/12.922572

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English