Počet záznamů: 1

Experimental and theoretical determination of optical binding forces

  1. 1.
    0350879 - UPT-D 2011 RIV US eng J - Článek v odborném periodiku
    Brzobohatý, Oto - Čižmár, T. - Karásek, Vítězslav - Šiler, Martin - Dholakia, K. - Zemánek, Pavel
    Experimental and theoretical determination of optical binding forces.
    Optics Express. Roč. 18, č. 24 (2010), s. 25389-25402 ISSN 1094-4087
    Grant CEP: GA ČR GA202/09/0348; GA MŠk OC08034; GA MŠk(CZ) LC06007; GA MŠk ED0017/01/01
    Výzkumný záměr: CEZ:AV0Z20650511
    Klíčová slova: optical binding forces * micro-particles * inter-particle effects * optical manipulation * optical tweezers
    Kód oboru RIV: BH - Optika, masery a lasery
    Impakt faktor: 3.749, rok: 2010

    We present an experimental and theoretical study of long distance optical binding effects acting upon micro-particles placed in a standing wave optical field. In particular we present for the first time quantitatively the binding forces between individual particles for varying inter-particle separations, polarizations and incident angles of the binding beam. Our quantitative experimental data and numerical simulations show that these effects are essentially enhanced due to the presence of a reflective surface in a sample chamber. They also reveal conditions to form stable optically bound clusters of two and three particles in this geometry. We show that the inter-particle separation in the formed clusters can be controlled by altering the angle of the beam incident upon the sample plane. This demonstrates new perspectives for the generation and control of optically bound soft matter and may be useful to understand various inter-particle effects in the presence of reflective surfaces.
    Trvalý link: http://hdl.handle.net/11104/0190760