Alexander Moroz

Learn More
We study the distance-dependent quenching of fluorescence due to a metallic nanoparticle in proximity of a fluorophore. In our single-molecule measurements, we achieve excellent control over structure and stoichiometry by using self-assembled DNA structures (DNA origami) as a breadboard where both the fluorophore and the 10 nm metallic nanoparticle are(More)
For any oblique incidence and arbitrarily high order, lattice sums for one-dimensional gratings can be expressed in terms of exponentially convergent series. The scattering Green's function can be efficiently evaluated also in the grating plane. Numerical implementation of the method is 200 times faster than for the previous best result.
V.A.BALKANOV, I.A.BELOLAPTIKOV, L.B.BEZRUKOV, B.A.BORISOVETS, N.M.BUDNEV, A.G.CHENSKY, I.A.DANILCHENKO, ZH.-A.M.DJILKIBAEV, V.I.DOBRYNIN, G.V.DOMOGATSKY, A.A.DOROSHENKO, S.V.FIALKOVSKY, O.N.GAPONENKO, A.A.GARUS, S.B.IGNATEV, A.KARLE, A.M.KLABUKOV, A.I.KLIMOV, S.I.KLIMUSHIN, A.P.KOSHECHKIN, V.F.KULEPOV, L.A.KUZMICHEV, B.K.LUBSANDORZHIEV, T.MIKOLAJSKI,(More)
We present a new set of artificial structures which can exhibit a negative refractive index band in excess of 6% in a broad frequency range from the deep infrared to the terahertz region. The structures are composites of two different kinds of non-overlapping spheres, one made from inherently non-magnetic polaritonic and the other from a Drude-like(More)
We demonstrate the simultaneous trapping of multiple high-refractive index (n > 2) particles in a dynamic array of counterpropagating optical tweezers in which the destabilizing scattering forces are canceled. These particles cannot be trapped in single-beam optical tweezers. The combined use of two opposing high-numerical aperture objectives and(More)
The surface plasmon modes of spherical and oblate spheroidal core-shell colloids composed of a 312 nm diameter silica core and a 20 nm thick Au shell are investigated. Large arrays of uniaxially aligned coreshell colloids with size aspect ratios ranging from 1.0 to 1.7 are fabricated using a novel ion irradiation technique. Angleand polarization-resolved(More)