Experimental demonstration of optical transport, sorting and self-arrangement using a “tractor beam

Brzobohatý, Oto; Karásek, Vítězslav; Šiler, Martin; Chvátal, Lukáš; Čižmár, T.; Zemánek, Pavel

doi:https://dx.doi.org/10.1038/NPHOTON.2012.332

Number of the records: 1

Experimental demonstration of optical transport, sorting and self-arrangement using a “tractor beam"

1.

SYSNO ASEP	0397687
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Experimental demonstration of optical transport, sorting and self-arrangement using a “tractor beam"
Author(s)	Brzobohatý, Oto (UPT-D)_{RID, ORCID, SAI} Karásek, Vítězslav (UPT-D)_{RID, SAI} Šiler, Martin (UPT-D)_{RID, ORCID, SAI} Chvátal, Lukáš (UPT-D)_{RID, ORCID, SAI} Čižmár, T. (GB) Zemánek, Pavel (UPT-D)_{RID, SAI, ORCID}
Number of authors	6
Source Title	Nature Photonics. - : Nature Publishing Group - ISSN 1749-4885 Roč. 7, č. 2 (2013), s. 123-127
Number of pages	5 s.
Publication form	Online - E
Language	eng - English
Country	GB - United Kingdom
Keywords	theoretical determination ; radiation force ; tweezers ; binding
Subject RIV	BH - Optics, Masers, Lasers
R&D Projects	GA202/09/0348 GA ČR - Czech Science Foundation (CSF)
	GPP205/11/P294 GA ČR - Czech Science Foundation (CSF)
	LH12018 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
	ED0017/01/01 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
Institutional support	UPT-D - RVO:68081731
UT WOS	000314858600010
EID SCOPUS	84889791682
DOI	10.1038/NPHOTON.2012.332
Annotation	Following the Keplerian idea of optical forces, one would intuitively expect that an object illuminated by sunlight radiation or a laser beam will be accelerated along the direction of photon flow. Recent theoretical studies have shown that small particles can be pulled by light beams against the photon stream, even in beams with uniform optical intensity along the propagation axis. Here, we present a geometry to generate such a ‘tractor beam’, and experimentally demonstrate its functionality using spherical microparticles of various sizes, as well as its enhancement with optically self-arranged structures of microparticles. In addition to the pulling of the particles, we also demonstrate that their two-dimensional motion and one-dimensional sorting may be controlled conveniently by rotation of the polarization of the linearly polarized incident beam. The relative simplicity of this geometry could serve to encourage its widespread application, and ongoing investigations will broaden the understanding of the light–matter interaction through studies combining more interacting micro-objects with various properties.
Workplace	Institute of Scientific Instruments
Contact	Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178
Year of Publishing	2014

Number of the records: 1