Dr. Alexander S. Shorokhov Profile

Dr. Alexander S. Shorokhov

PhD student at MV Lomonosov Moscow State Univ

SPIE Involvement:

Author

Publications (10)

Proceedings Article | 29 November 2023 Poster

Mie-resonant silicon waveguide for efficient coupling with out-of-plane excitons in InSe

Timofei Antipov, Alexandra Gartman, Alexander Shorokhov, Dmitry Gulkin, Andrey Fedyanin, Maxim Rakhlin, Lyubov Kotova, Bogdan Borodin, Ilya Eliseev, Aidar Galimov

Proceedings Volume 12773, 127731E (2023) https://doi.org/10.1117/12.2688939

KEYWORDS: Silicon, Waveguides, Thin films, Near field optics, Nanostructures, Excitons, Photoluminescence, Near field, Nanoparticles, Magnetism

Proceedings Article | 31 December 2022 Presentation

All-optical modulation based on the phase-change materials combined with chains of silicon nanoantennas

Alisher Ibragimov, Vladislav Sitnianskii, Damir Yagudin, Alexander Shorokhov, Andrey Fedyanin

Proceedings Volume PC12322, PC1232205 (2022) https://doi.org/10.1117/12.2642945

KEYWORDS: Silicon, Phase shift keying, Nanoantennas, Modulation, Crystals, Waveguides, Tantalum, Photonic crystals, Nanoparticles, Technetium

Read Abstract +

Proceedings Article | 31 December 2022 Poster + Presentation

Semiconductor metasurfaces for optical correlation analysis and tunable image processing

Viacheslav Iushkov, Vladislav Sitnyansky, Nikolay Orlikovskiy, Alexander Shorokhov, Andrey Fedyanin

Proceedings Volume PC12322, PC123221B (2022) https://doi.org/10.1117/12.2643851

KEYWORDS: Image analysis, Semiconductors, Optical semiconductors, Image processing, Dielectrics, Tunable filters, Photonics, Optical filters, Convolution, Wavefronts

Read Abstract +

Proceedings Article | 18 April 2021 Poster + Presentation

All-optical image tracking based on the silicon metasurface

Viacheslav Iushkov, Vladislav Sitnianskii, Daniil Shilkin, Alexander Shorokhov, Andrey Fedyanin

Proceedings Volume 11769, 1176916 (2021) https://doi.org/10.1117/12.2589108

KEYWORDS: Silicon, Image analysis, Photonics, Phase shifts, Fourier transforms, Dielectrics, Convolution, Optical components, Nanostructures, Image processing

Read Abstract +

Proceedings Article | 9 September 2019 Presentation

Ultrafast light-scattering dynamics of resonant semiconductor GaAs metasurfaces (Conference Presentation)

Dmitry Gulkin, Vladimir Bessonov, Viacheslav Snigirev, Alexander Shorokhov, Irina Soboleva, Andrey Fedyanin

Proceedings Volume 11122, 1112202 (2019) https://doi.org/10.1117/12.2529453

KEYWORDS: Gallium arsenide, Ultrafast phenomena, Semiconductors, Nanoantennas, Diffraction, Switches, Light scattering, Femtosecond phenomena, Nanophotonics, Optical components

Read Abstract +

Proceedings Article | 7 May 2018 Presentation + Paper

Local field coupling effects in silicon oligomers revealed by third-harmonic generation microscopy

Maria Kroychuk, Damir Yagudin, Alexander Shorokhov, Andrey Fedyanin

Proceedings Volume 10671, 1067108 (2018) https://doi.org/10.1117/12.2306690

KEYWORDS: Nanoparticles, Polarization, Third-harmonic generation, Silicon, Magnetism, Microscopy, Dielectric polarization, Nonlinear optics, Complex systems, Near field optics

Read Abstract +

Proceedings Article | 7 May 2018 Presentation + Paper

Enhanced magneto-optical effects in dielectric Mie-resonant metasurfaces

Maria Barsukova, Alexander Shorokhov, Alexander Musorin, Andrey Fedyanin

Proceedings Volume 10671, 106711W (2018) https://doi.org/10.1117/12.2306961

KEYWORDS: Magneto-optics, Silicon, Nanoantennas, Magnetism, Nickel

Read Abstract +

Proceedings Article | 28 April 2017 Presentation

Enhancement of nonlinear-optical effects in silicon nanodisks driven by magnetic Mie resonances (Conference Presentation)

Andrey Fedyanin, Alexander Shorokhov, Maxim Shcherbakov, Dragomir Neshev, Yuri Kivshar

Proceedings Volume 10113, 101130S (2017) https://doi.org/10.1117/12.2256719

KEYWORDS: Resonance enhancement, Nonlinear response, Silicon, Magnetism, Third-harmonic generation, Nanoparticles, Dielectrics, Plasmonics, Complex systems, Nanophotonics

Read Abstract +

Proceedings Article | 4 August 2016 Presentation

Third harmonic generation in isolated all dielectric meta-atoms (Conference Presentation)

Elizaveta Melik-Gaykazyan, Alexander Shorokhov, Maxim Shcherbakov, Isabelle Staude, Daria Smirnova, Andrey Miroshnichenko, Igal Brener, Dragomir Neshev, Andrey Fedyanin, Yuri Kivshar

Proceedings Volume 9894, 98940X (2016) https://doi.org/10.1117/12.2228249

KEYWORDS: Nanostructures, Silicon, Third-harmonic generation, Nonlinear optics, Spectroscopy, Magnetism, Metamaterials, Harmonic generation, Dielectrics, Polarization

Read Abstract +

Two series of nanodisk arrays were designed. The first one was fabricated out of a silicon-on-insulator (SOI) wafer using electron-beam lithography and a reactive-ion etching process. The top layer of a SOI wafer is a 260-nm layer of monocrystalline (100)-cut silicon. We consider three square 400x400 μm2 arrays distinguished by the disk diameter values – 340, 345 and 360 nm, respectively; the period of the nanodisk ordering in the array amounted to 2.85 μm – this value allows for regarding the disks as isolated ones in terms of optical coupling. The nanodisk diameter choice specifies the magnetic dipolar (MD) resonance wavelength [1]. The second series of arrays was made of a 130-nm hydrogenated amorphous silicon (a-Si:H) film grown by plasma-enhanced chemical vapor deposition on a thin glass substrate. In order to study the nonlinear optical response of the nanodisks and verify the multipole resonances roles, we conducted third-harmonic generation (THG) spectroscopy measurements using a tunable (1.0-1.5 μm) optical parametric oscillator (200 fs pulses with the repetition rate of 76 MHz) pumped by a Ti:Sapphire laser. The laser beam waist diameter was set at 11 μm by an aspheric lens. The full thickness of both the SOI and glass wafers (∼500 μm each) was less than the waist depth. The resulting peak intensity reached the values of about 1 GW/cm2 in the sample plane. The laser beam polarization was linear as controlled by a Glan-Taylor laser prism. The transmitted and collimated THG signal was selected by a set of blue filters and detected by a photomultiplier tube connected with a lock-in amplifier. This signal was proven to be of TH origin by checking its cubic dependence on the pump power and by direct measurements of its spectrum. It was also verified that the THG beam was polarized parallel to the orientation of the pump beam polarization. It should be pointed out that the penetration depth of the THG into silicon does not exceed the nanodisk height. The experimental technique [2] of nonlinear spectroscopy consists of defining the ratio of the TH signal from the nanostructured area to the successively measured signal from the nearby area where the top layer of silicon was etched away (in the case of the SOI wafer) or to the signal from a reference channel (in the case of the a-Si:H film). These ratios reveal the enhanced third-order optical response; moreover, the dispersion of the silicon nonlinear susceptibility is thereby taken into account. The resultant normalized THG signal represents the nanodisks and their resonant contribution. In this contribution, we have shown the third-harmonic response of silicon nanodisks at their electric and magnetic dipolar resonances. The enhanced up-conversion efficiency at the MD resonance of the nanodisks is observed, whereas the electric dipolar resonance yields less nonlinear conversion. The maximum area-normalized THG enhancement is around 30. In this work, the observed linear and nonlinear spectra are confirmed by numerical calculations. [1] I. Staude, et al., ACS Nano, 7, 7824 (2013). [2] M.R. Shcherbakov, et al., Nano Lett., 14, 6488 (2014).

Proceedings Article | 14 March 2016 Paper

Free-carrier contribution to all-optical switching in Mie-resonant hydrogenated amorphous silicon nanodisks

Polina Vabishchevich, Alexander Shorokhov, Maxim Shcherbakov, Andrey Fedyanin

Proceedings Volume 9756, 97560E (2016) https://doi.org/10.1117/12.2212294

KEYWORDS: Transmittance, Switching, Nanostructures, Amorphous silicon, Silicon, Magnetism, Nanoparticles, Picosecond phenomena, Dielectrics, Pulsed laser operation

Read Abstract +

Showing 5 of 10 publications

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Keywords/Phrases

Search In:

Publication Years