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Proceedings Paper

Tractor beam in micro-scale
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Paper Abstract

Following the Keplerian idea of radiative forces one would intuitively expect that an object illuminated by sunlight radiation or a laser beam is accelerated along the direction of the photon flow. Such radiation pressure forms the basis for the concept of solar sail, or laser acceleration of micro-particles. In contrast, a hypothetical optical field known from the realm of science-fiction as the "tractor" beam attracts the matter from large distances against the beam propagation. We present a geometry of such"tractor" beam in micro-scale and experimentally demonstrate how it acts upon spherical micro-particles of various sizes or optically self-arranged structures of micro-particles.

Paper Details

Date Published: 5 December 2014
PDF: 8 pages
Proc. SPIE 9441, 19th Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 944104 (5 December 2014); doi: 10.1117/12.2176010
Show Author Affiliations
O. Brzobohatý, ASCR, Institute of Scientific Instruments (Czech Republic)
V. Karásek, ASCR, Institute of Scientific Instruments (Czech Republic)
M. Šiler, ASCR, Institute of Scientific Instruments (Czech Republic)
L. Chvátal, ASCR, Institute of Scientific Instruments (Czech Republic)
T. Čižmár, Univ. of Dundee (United Kingdom)
P. Zemánek, ASCR, Institute of Scientific Instruments (Czech Republic)


Published in SPIE Proceedings Vol. 9441:
19th Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics
Agnieszka Popiolek-Masajada; Waclaw Urbanczyk, Editor(s)

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