Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Aleksey P. Porfirev"'
Autor:
Aleksey P. Porfirev, Yulia Borodaenko, Alexander V. Shevlyagin, S. Syubaev, Aleksandr A. Kuchmizhak, Saulius Juodkazis, Evgeny L. Gurevich, Evgeny Modin, Andrey V. Gerasimenko, Eugeny Mitsai, A. Zhizhchenko, Stanislav O. Gurbatov, Svetlana N. Khonina
Publikováno v:
ACS Applied Materials & Interfaces. 13:54551-54560
Strong light localization inside the nanoscale gaps provides remarkable opportunities for creation of various medical and biosensing platforms stimulating an active search for inexpensive and easily scalable fabrication at a sub-100 nm resolution. In
Publikováno v:
Nanophotonics. 11:697-712
We propose vector modes based on inhomogeneously polarized Hermite–Gaussian (HG) vector beams, providing complete structural conservation of the beams during propagation. Like uniformly polarized mode beams, these beams provide structural stability
Publikováno v:
Solid State Phenomena. 312:107-112
Here, we showed formation of chiral nanoprotrusions upon direct laser ablation of bulk crystalline silicon (c-Si) wafer with single femtosecond (fs) pulses having asymmetric donut-shaped intensity profile. Breaking circular symmetry of the irradiatin
Publikováno v:
Solid State Phenomena. 312:148-153
Direct femtosecond laser printing was used to fabricate circular-and coaxial-shaped hole arrays at ultrafast printing rate up to 106 elements per second. To achieve such fast printing rate, we implemented a spatial multiplexing of either a single Gau
Autor:
Aleksandr A. Kuchmizhak, S. Syubaev, Aleksey Y. Zhizhchenko, Sergey I. Kudryashov, Oleg B. Vitrik, Aleksey P. Porfirev, Svetlana N. Khonina, Sergey A. Fomchenkov
Publikováno v:
Applied Surface Science. 470:526-534
We report on fabrication of Ag nanoneedles with tailored chirality via direct ns-laser printing with “structured” laser beams, zero-optical-angular momentum spiral-shaped beams with variable intensity profiles as well as the perfect optical vorte
Autor:
Aleksey P. Porfirev, Pavel A. Khorin
Publikováno v:
Saratov Fall Meeting 2020: Laser Physics, Photonic Technologies, and Molecular Modeling.
We investigate the diffraction of a polarized light by nonlinear spiral phase plate (NSPP) in the near zone, taking into account the three-dimensional structure of the optical element. The simulation of the NSPP diffraction is based on the finite dif
Publikováno v:
Defect and Diffusion Forum. 386:224-228
Formation of a chiral nanorelief appearing on the surface of plasmonic-active metals upon their ablation with vortex and spiral-shape beam was recently found to be mainly driven by the helical-shape temperature and corresponding surface tension gradi
Autor:
A. Zhizhchenko, Artem B. Cherepakhin, Anatoly P. Pushkarev, Sergei A. Kulinich, Aleksey P. Porfirev, Mikhail A. Masharin, Sergey V. Makarov, Aleksandr A. Kuchmizhak
Publikováno v:
Laser & Photonics Reviews. 15:2100094
Publikováno v:
Synthesis and Photonics of Nanoscale Materials XVI.
Recently, chiral mass transfer on the surface of plasmonic-active metals appeared upon their ablation with vortex laser pulses was found to be driven by a helical-shape temperature and corresponding surface tension gradients rather than optical angul
Autor:
Andrey A. Ionin, Svetlana N. Khonina, S. Syubaev, O. B. Vitrik, Aleksey P. Porfirev, Pavel Danilov, Aleksandr A. Kuchmizhak, E. V. Pustovalov, Yuri N. Kulchin, Sergey I. Kudryashov
Publikováno v:
ACS applied materialsinterfaces. 8(37)
Surface-enhanced Raman scattering (SERS) and surface-enhanced photoluminescence (SEPL) are emerging as versatile widespread methods for biological, chemical, and physical characterization in close proximity of nanostructured surfaces of plasmonic mat