7 papers
Terahertz transitions in finite carbon chains
R. R. Hartmann, S. Kutrovskaya, A. Kucherik +2
We predict an optical effect associated with systems which exhibit topologically protected states separated by a finite distance. We develop a tight-binding model to calculate the…
Formation of Fractal Dendrites by Laser induced melting of Aluminum Alloys
Alexey Kucherik, Vlad Samyshkin, Evgeny Prusov +7
We report on the fabrication of fractal dendrites by laser induced melting of aluminum alloys. We target boron carbide (B4C) that is one of the most effective radiation-absorbing m…
Exciton radiative lifetime in a monoatomic carbon chain
Stella Kutrovskaya, Sevak Demirchyan, Anton Osipov +4
Linear carbon-based materials such as polyyne and cumulene oligomers provide a versatile platform for nano-physics and engineering. Direct gap quasi-1D polyyne structures are promi…
Exciton energy spectra in polyyne chains
Stella Kutrovskaya, Sevak Demirchyan, Anton Osipov +4
Recently, we have experimentally observed signatures of sharp exciton peaks in the photoluminescence spectra of bundles of monoatomic carbon chains stabilized by gold nanoparticles…
Electric field assisted alignment of monoatomic carbon chains
Stella Kutrovskaya, Igor Chestnov, Anton Osipov +4
We stabilize monoatomic carbon chains in water by attaching them to gold nanoparticles (NPs) by means of the laser ablation process. Resulting nanoobjects represent pairs of NPs co…
Photosensitive free-standing ultra-thin carbyne-gold films
Vlad Samyshkin, Anastasia Lelekova, Anton Osipov +4
In the article we introduce the experiment of the photostimulation effect in the tunneling conductivity of free-standing thin C-Au films. We observe a sharp increase of the conduct…