Papers by Andrey Novitsky
arXiv (Cornell University), Sep 23, 2019
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arXiv (Cornell University), 2009
In this Letter we propose the concept of the evanescent Airy beam. We analyze the structure of th... more In this Letter we propose the concept of the evanescent Airy beam. We analyze the structure of the ideal evanescent Airy beam, which initial profile has the Airy form, while the spectral decomposition consists of only evanescent partial waves. Also, we discuss the refraction of the Airy beam through the interface and investigate the field of the transmitted evanescent Airy beam.
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Physical Review Research
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arXiv (Cornell University), Dec 27, 2022
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ABSTRACT We discuss an optical scheme which facilitates modulation of an optical waveguide mode b... more ABSTRACT We discuss an optical scheme which facilitates modulation of an optical waveguide mode by metallic-nanoslit-enhanced THz radiation. The waveguide mode acquires an additional phase shift due to THz nonlinearity with fields reachable in experiments.
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Journal of physics, Oct 4, 2006
... A = i kr eϕ ⊗ eϕ + e × r αIr + e × r εer ⊗ v3 + e × r (u + αer) ⊗ v1 B = e × r εIr + e × r εe... more ... A = i kr eϕ ⊗ eϕ + e × r αIr + e × r εer ⊗ v3 + e × r (u + αer) ⊗ v1 B = e × r εIr + e × r εer ⊗ v4 + e × r (u + αer) ⊗ v2 C = −e × r µIr − e × r ... AV Novitsky and LM Barkovsky ... An arbitrary vector function can be written as the superposition of cylindrical partial waves: ( H⊥(r, ϕ, z) E⊥(r, ϕ, z ...
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OSA continuum, Dec 20, 2019
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Nanophotonics, Jun 1, 2014
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Physical Review Letters, Nov 10, 2011
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Crystallography Reports, Feb 1, 2023
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Nucleation and Atmospheric Aerosols, 2010
Strong electric field enhancement in a metal nanoslit with THz field illumination is hardly calcu... more Strong electric field enhancement in a metal nanoslit with THz field illumination is hardly calculated using the standard simulation packages. It is explained by the considerable difference of the values of nano sizes of the slit and the wavelength of the incident radiation (up to 10000 times). Therefore, significant computational resources or/and the home-made simulation code is needed. We offer the simple single-parameter model as an alternative to the time consuming calculations. The single parameter can be calculated either from the experimental or simulation data (one reference point is necessary to determine one parameter). Then we can find the field enhancement for different slit geometries and light wavelengths.
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Nucleation and Atmospheric Aerosols, 2011
ABSTRACT We discuss a feasibility of the pulling (backward) force acting on a spherical micropart... more ABSTRACT We discuss a feasibility of the pulling (backward) force acting on a spherical microparticle in a non-paraxial Bessel beam. The effect can be explained by the strong interaction of particle's multipoles or by the conservation of momentum in the system ``photons-particle.'' It is remarkable that the puling force revealed does not require the beam focusing or high-index ambient medium. The necessary condition of arising of the backward force is the strong non-paraxiality of an electromagnetic beam. We expect this phenomenon will open new horizons in optical micromanipulation.
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Journal of Optics, Sep 30, 2010
We discuss the reflection and transmission of an incident surface wave to a pure surface wave sta... more We discuss the reflection and transmission of an incident surface wave to a pure surface wave state at another interface. This is allowed only for special media parameters: at least one of the media must be magnetic. We found such material characteristics that the obliquely incident surface wave can be transmitted without changing its direction (nevertheless the amplitude varies). For other media parameters, only normally incident surface waves can be converted to surface waves. We propose applications of the predicted conversion as a beam splitter and polarization filter for surface waves.
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Optics Letters, Sep 1, 2015
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IEEE Photonics Journal, Dec 1, 2022
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We present the operator approach of finding material parameters of inhomogeneous bianisotropic me... more We present the operator approach of finding material parameters of inhomogeneous bianisotropic media, the Maxwell equations in which have closed-form solutions. It is applicable to spherically- and cylindrically-symmetric media. Scattering theory for the inhomogeneous objects in question is developed.
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arXiv (Cornell University), Jun 25, 2009
Based on the concept of the cloak generating function, we propose a transformation-free method fo... more Based on the concept of the cloak generating function, we propose a transformation-free method for the required parameters of spherical cloaks without knowing the needed coordinate transformation beforehand. A non-ideal discrete model is used to calculate and optimize the total scattering cross-sections of different profiles of the generating function. A bell-shaped quadratic spherical cloak is found to be the best candidate, which is further optimized by controlling design parameters involved. Such improved invisibility is steady even when the model is highly discretized.
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Papers by Andrey Novitsky