Garbin, Valeria, Volpe, Giovanni, Ferrari, Enrico , Versluis, Michel, Cojoc, Dan and Petrov, Dmitri (2009) Mie scattering distinguishes the topological charge of an optical vortex: a homage to Gustav Mie. New Journal of Physics, 11 (1). 013046. ISSN 1367-2630
Full content URL: http://dx.doi.org/10.1088/1367-2630/11/1/013046
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| Item Type: | Article |
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| Item Status: | Live Archive |
Abstract
One century after Mie's original paper, Mie scattering is still a fertile field of scientific endeavor. We show that the Mie scattering distinguishes the topological charge of light beams with phase dislocations. We experimentally and numerically study the scattering of highly focused Laguerre–Gaussian beams by dielectric and metal spheres, and show that the scattered field is sensitive to the modulus and to the sign of the topological charge. The implications for position detection systems are also discussed.
| Additional Information: | One century after Mie's original paper, Mie scattering is still a fertile field of scientific endeavor. We show that the Mie scattering distinguishes the topological charge of light beams with phase dislocations. We experimentally and numerically study the scattering of highly focused Laguerre–Gaussian beams by dielectric and metal spheres, and show that the scattered field is sensitive to the modulus and to the sign of the topological charge. The implications for position detection systems are also discussed. |
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| Keywords: | optical vortex, Mie scattering |
| Subjects: | F Physical Sciences > F360 Optical Physics |
| Divisions: | College of Science > School of Life Sciences |
| ID Code: | 6591 |
| Deposited On: | 16 Oct 2012 16:53 |
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