Dr. Tatyana V. Dolgova Profile

Dr. Tatyana V. Dolgova

Research Assosiate, Faculty of Physics at MV Lomonosov Moscow State Univ

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Publications (11)

Proceedings Article | 1 April 2020 Presentation

Ultrafast magnetoplasmonics of profile-tailored all-nickel nanogratings (Conference Presentation)

Ilya Novikov, Nurgalieva Polina, Maxim Kiryanov, Aleksandr Frolov, Vladimir Popov, Tatyana Dolgova, Andrey Fedyanin

Proceedings Volume 11358, 113581D (2020) https://doi.org/10.1117/12.2555246

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Surface plasmon-polaritons (SPP) excited in periodic metallic gratings provide strong electromagnetic field localization at the interface. The applications of plasmonic structures are mainly sensors for magnetic and biochemical measurements. Besides such nanostructures are widely used in the laser technique applications, e.g. for lowering the threshold of the laser fluences sufficient for all-optical switching and optical demagnetization processes. The possibility to tune an SPP resonance (SPR) in real time is very attractive for fundamental and practical needs. It may be provided by active plasmonics studying the opportunities of SPR control using external stimulus. Here we experimentally study the influence of nanostructure profile depth on the ultrafast SPR control capabilities. It is shown that moderate fluence of 6 mJ/cm2 can induce ultrafast charge carriers dynamics in all considered nanostructures resulting in their optical and magnetooptical response modulation. The latter is visualized using the pump-probe technique in the transverse magnetooptical Kerr effect (TMOKE) configuration. A 1-KHz Ti:Sapp regenerative amplifier is a pump source, and a super-continuum pulse is a probe. The modification of the SPP wave vector under the pump pulse irraditation may be considered as the physical reason of modulation in both non-magnetic and magnetic cases. The peak reflectance and TMOKE spectra modulation values in the spectral area of SPR are affected by the surface corrugation depth of the plasmonic crystal. Their highest achieved values for the set of studied MPCs are of 10% and 0.7% respectively. The durations of laser-induced charge carriers thermalization and relaxation processes are also profile-dependent. Their typical values are of 400 fs for electron thermalization, of 1 ps for electron-phonon relaxation, and of several tens of ps for phonon-phonon relaxation process. This research was supported by the Russian Foundation for Basic Research (Grants No. 17-52-560011, No. 18-52-45023) and MSU Quantum Technologies Center.

Proceedings Article | 28 August 2015 Presentation + Paper

Femtosecond control of magneto-optical effects in magnetoplasmonic crystals

A. Chetvertukhin, M. Shcherbakov, P. Vabishchevich, A. Frolov, T. Dolgova, M. Inoue, A. Fedyanin

Proceedings Volume 9547, 95471A (2015) https://doi.org/10.1117/12.2192502

KEYWORDS: Spiral phase plates, Crystals, Magnetism, Reflectivity, Plasmonics, Femtosecond phenomena, Ultrafast phenomena, Laser crystals, Nickel, Correlation function

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Proceedings Article | 5 May 2015 Paper

Ultrafast dynamics of Faraday rotation in thin films

Margarita Sharipova, Alexander Musorin, Tatyana Dolgova, Andrey Fedyanin

Proceedings Volume 9502, 95020O (2015) https://doi.org/10.1117/12.2180635

KEYWORDS: Neodymium, Polarization, Electroluminescent displays, Femtosecond phenomena, Magnetism, Transmittance, Correlation function, Photonic crystals, Thin films, Ultrafast phenomena

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Proceedings Article | 14 May 2010 Paper

Femtosecond dynamics of resonantly enhanced surface plasmons in planar plasmonic crystals

Polina Vabishchevich, Fedor Sychev, Vladimir Bessonov, Maxim Shcherbakov, Tatyana Dolgova, Elena Mishina, Alexander Sigov, Andrey Fedyanin

Proceedings Volume 7713, 771312 (2010) https://doi.org/10.1117/12.854730

KEYWORDS: Spiral phase plates, Femtosecond phenomena, Plasmonics, Crystals, Reflection, Surface plasmons, Metals, Ultrafast phenomena, Nanostructures, Destructive interference

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Proceedings Article | 29 April 2010 Paper

Optical chirality in plasmonic arrays of subwavelength Z-shaped apertures

Maxim Shcherbakov, Polina Vabishchevich, Mikhail Dobynde, Tatyana Dolgova, Elena Mishina, Alexander Sigov, Andrey Fedyanin

Proceedings Volume 7711, 771109 (2010) https://doi.org/10.1117/12.854699

KEYWORDS: Geometrical optics, Polarization, Plasmonics, Metamaterials, Spectroscopy, Objectives, Silver, Thin films, Nanostructures, Surface plasmons

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Proceedings Article | 12 May 2009 Paper

Plasmon-induced wavelength-dependent polarization switching in optical metamaterials

Maxim Shcherbakov, Polina Vabishchevich, Tatyana Dolgova, Alexander Zaitsev, Alexander Sigov, Andrey Fedyanin

Proceedings Volume 7353, 73530T (2009) https://doi.org/10.1117/12.820708

KEYWORDS: Polarization, Refractive index, Metamaterials, Birefringence, Dielectric polarization, Silver, Optical metamaterials, Spectroscopy, Dichroic materials, Light wave propagation

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Proceedings Article | 12 May 2009 Paper

Magneto-optical response enhancement in 1D and 2D magnetoplasmonic crystals

A. Grunin, A. Zhdanov, B. Tsema, A. Ezhov, T. Dolgova, E. Ganshina, M. Hong, A. Fedyanin

Proceedings Volume 7353, 73530F (2009) https://doi.org/10.1117/12.820704

KEYWORDS: Crystals, Nickel, Reflection, Metals, Polarization, Kerr effect, Photonic crystals, Magnetism, Diffraction, Plasmonics

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Proceedings Article | 10 June 2006 Paper

Structural and nonlinear-optical studies of ultrathin Si/Si0₂ multiple quantum wells

Andrei Lomov, Arseniy Sutyrin, Denis Yu. Prokhorov, Tatyana Dolgova, Andrei Fedyanin, Oleg Aktsipetrov

Proceedings Volume 6260, 626016 (2006) https://doi.org/10.1117/12.683402

KEYWORDS: Second-harmonic generation, Quantum wells, Silicon, X-rays, Reflectometry, Anisotropy, Geometrical optics, Spectroscopy, Interferometry, Interfaces

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Proceedings Article | 5 November 2002 Paper

Observation of local field distribution in photonic crystal microcavity by SNOM technique

Anton Maidykovski, Oleg Lebedev, Tatyana Dolgova, D. Kazantsev, Andrew Fedyanin

Proceedings Volume 4808, (2002) https://doi.org/10.1117/12.452241

KEYWORDS: Optical microcavities, Near field scanning optical microscopy, Photonic crystals, Near field optics, Wafer-level optics, Optical properties, Nanocrystals, Optical microscopes, Silicon, Semiconducting wafers

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Proceedings Article | 5 November 2002 Paper

Observation of third-harmonic generation in one-dimensional all-silicon microcavities

Tatyana Dolgova, Michail Martemyanov, Andrew Fedyanin

Proceedings Volume 4808, (2002) https://doi.org/10.1117/12.452249

KEYWORDS: Third-harmonic generation, Optical microcavities, Silicon, Resonance enhancement, Optical properties, Nanocrystals, Photonic crystals

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Proceedings Article | 5 November 2002 Paper

Split-mode-enhanced second-harmonic generation in porous silicon-coupled microcavities

Tatyana Dolgova, Michail Martemyanov, Evgenia Kim, D. Gusev, Andrew Fedyanin

Proceedings Volume 4808, (2002) https://doi.org/10.1117/12.452250

KEYWORDS: Second-harmonic generation, Optical microcavities, Silicon, Photonic crystals, Optical properties, Nanocrystals, Silicon photonics, Crystals, Control systems, Reflectors

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Showing 5 of 11 publications

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