Dynamics of an optically bound structure made of particles of unequal sizes

0477933 - ÚPT 2018 RIV US eng J - Článek v odborném periodiku
Karásek, Vítězslav - Šiler, Martin - Brzobohatý, Oto - Zemánek, Pavel
Dynamics of an optically bound structure made of particles of unequal sizes.
Optics Letters. Roč. 42, č. 7 (2017), s. 1436-1439. ISSN 0146-9592. E-ISSN 1539-4794
Grant CEP: GA ČR(CZ) GA14-16195S; GA MŠMT(CZ) LO1212; GA MŠMT ED0017/01/01
Institucionální podpora: RVO:68081731
Klíčová slova: anisotropic particles * Gaussian beams * nanoparticles
Obor OECD: Optics (including laser optics and quantum optics)
Impakt faktor: 3.589, rok: 2017

This theoretical study based on the coupled dipoles model focuses on the dynamics of two optically bound dielectric spheres of unequal sizes confined in counter- propagating incoherent Bessel beams. We analyzed the relative motion of the particles with respect to each other and defined conditions where they form a stable optically bound structure (OBS). We also investigated the motion of the center of mass of the OBS and found that its direction depends on the particle separation in the structure. Besides the optical interaction between objects, we also considered a hydrodynamic coupling in order to obtain more precise results for moving an OBS.
Trvalý link: http://hdl.handle.net/11104/0274145