G
Georgiy Tkachenko
Researcher at Okinawa Institute of Science and Technology
Publications - 43
Citations - 732
Georgiy Tkachenko is an academic researcher from Okinawa Institute of Science and Technology. The author has contributed to research in topics: Liquid crystal & Porous silicon. The author has an hindex of 11, co-authored 40 publications receiving 575 citations. Previous affiliations of Georgiy Tkachenko include University of Bordeaux & University of St Andrews.
Papers
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Optofluidic sorting of material chirality by chiral light
TL;DR: It is experimentally demonstrated that material chirality can be passively sorted in a fluidic environment by chiral light owing to spin-dependent optical forces without chiral morphology prerequisite.
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Helicity-dependent three-dimensional optical trapping of chiral microparticles
TL;DR: It is revealed that the interplay of the helicity of light and the chirality of matter turns the photon spin angular momentum into an efficient tool for selective trapping of chiral particles.
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Reflective Spin-Orbit Geometric Phase from Chiral Anisotropic Optical Media
Mushegh Rafayelyan,Mushegh Rafayelyan,Georgiy Tkachenko,Georgiy Tkachenko,Etienne Brasselet,Etienne Brasselet +5 more
TL;DR: A novel class of geometric phase elements-"Bragg-Berry" optical elements based on a helicity-preserving circular Bragg-reflection phenomenon are reported on, which allow the efficient spin-orbit tailoring of light fields without the need to fulfill any condition on birefringent phase retardation.
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Spin controlled optical radiation pressure.
TL;DR: In this article, the full control of the optical radiation pressure at fixed photon flux and incident angle by the photon spin was reported by using transparent chiral liquid crystal droplets that enable a strong coupling between the linear and angular degrees of freedom of a light field.
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Is it possible to create a perfect fractional vortex beam
TL;DR: In this article, light-induced orbiting of a trapped microparticle as a probe of the local orbital angular momentum density in both integer-and fractional-index perfect vortex beams was considered.