320 citations · 969 across the 31 of their papers we have counts for
31 papers
Towards on-chip nascent all-van-der-Waals polarization optical components for nanoscale photonic applications
Dmitrii Litvinov, Ilia Begichev, Iakov Reznikov +8
The integration of polarization-control elements into nanoscale photonic circuits remains a central challenge for modern on-chip optical technologies, which call for continuous min…
Probing the temperature dependence of dielectric function of ternary transition metal dichalcogenides: towards thermo-driven ultrathin photonic components
Artsruni Margaryan, Maria Levonyan, Maksim Sargsyan +4
Transition metal dichalcogenides (TMDs), along with their ternary derivatives, have attracted considerable attention mostly due to pronounced excitonic resonances emerging in visib…
Broadband dielectric permittivity tensor of muscovite for next-generation all van der Waals photonic components
Meri Hayrapetyan, Maksim Sargsyan, David Karakhanyan +8
We report a comprehensive determination of the broadband dielectric permittivity tensor of van der Waals (vdW) muscovite also referred to as mica, establishing it as a low-index lo…
Polyvinylpyrrolidone planarized liquid crystalline 1T-WS2/rGO hybrid nanocomposites-based humidity sensing platform
A. Vasilev, M. Zhezhu, S. Gyozalyan +7
Two-dimensional hybrid nanocomposites combining graphene-like materials and transition metal dichalcogenides (TMDCs) are created using various synthesis methods and are vital for e…
Dielectric permittivity tensor dynamics of in-plane hyperbolic van der Waals MoOCl2 and emergent chiral photonic applications
Artsruni Margaryan, Maksim Sargsyan, Meri Hayrapetyan +3
Van der Waals (vdW) crystals offer unique opportunities for modern nanophotonic applications owing to their intrinsic anisotropic nature. While most of them exhibit uniaxial anisot…
Record Index-Bandgap Trade-off: CdPS3 as a High-Index van der Waals Platform for Ultraviolet-Visible Nanophotonics
M. R. Povolotskiy, A. S. Slavich, G. A. Ermolaev +21
The development of nanophotonics is hindered by a fundamental trade-off between a material's refractive index (n) and its electronic bandgap (Eg), which severely restricts the choi…
Probing the features of electron dispersion by tunneling between slightly twisted bilayer graphene sheets
Alexey A. Sokolik, Azat F. Aminov, Evgenii E. Vdovin +6
Tunneling conductance between two bilayer graphene (BLG) sheets separated by 2 nm-thick insulating barrier was measured in two devices with the twist angles between BLGs less than…
Revisiting THz absorption in GO and rGO liquid crystalline films
A. Vasilev, M. Zhezhu, H. Parsamyan +4
With a swift progress in modern high-throughput communication systems, security, sensing and medicine utilizing THz range technologies, the demand for easy-to-fabricate, lightweigh…
L-Cysteine Polymorph Coatings for THz Sensing Metasurfaces
M. Zhezhu, A. Vasilev, H. Parsamyan +5
The electromagnetic response of metasurfaces can be intentionally engineered by carefully designing their unit cells. Narrowband metasurfaces, characterized by high quality factors…
Chemical vapor deposition synthesis of (GeTe)n(Sb2Te3) gradient crystalline films as promising planar heterostructures
M. Zhezhu, A. Vasil'ev, M. Yapryntsev +3
Phase-change materials of the (GeTe)n (Sb2Te3) (GST) system are of high relevance in memory storage and energy conversion applications due to their fast-switching speed, high data…
Anisotropic van der Waals Crystal with High Refractive Index and Transparency for UV-Visible Range Applications
Aleksandr Slavich, Georgy Ermolaev, Ilya Zavidovskiy +20
Thanks to their record high refractive index and giant optical anisotropy, van der Waals (vdW) materials have accelerated the development of nanophotonics. However, traditional hig…
Improving the Electro-Optical Properties of MoS/rGO Hybrid Nanocomposites Using Liquid Crystals
A. Vasilev, Y. Melikyan, M. Zhezhu +5
Hybrid systems of two-dimensional (2D) materials (such as graphene-family materials and 2D transition metal dichalcogenides) are attracting much attention due to their distinctive…
Nanopatterning of multicomponent van der Waals heterostructures using atomic force microscopy
A. L. Shilov, L. Elesin, A. Grebenko +10
Multilayer van der Waals (vdW) heterostructures have become an important platform in which to study novel fundamental effects emerging at the nanoscale. Standard nanopatterning tec…
E-Beam Induced Micropattern Generation and Amorphization of L-Cysteine-Functionalized Graphene Oxide Nano-composites
Y. Melikyan, H. Gharagulyan, A. Vasilev +8
The evolution of dynamic processes in graphene-family materials are of great interest for both scientific purposes and technical applications. Scanning electron microscopy and tran…
Infrared photodetection in graphene-based heterostructures: bolometric and thermoelectric effects at the tunneling barrier
Dmitry A. Mylnikov, Mikhail A. Kashchenko, Kirill N. Kapralov +7
Graphene/hBN/graphene tunnel devices offer promise as sensitive mid-infrared photodetectors but the microscopic origin underlying the photoresponse in them remains elusive. In this…
Chiral photonic super-crystals based on helical van der Waals homostructures
Kirill V. Voronin, Adilet N. Toksumakov, Georgy A. Ermolaev +9
Chirality is probably the most mysterious among all symmetry transformations. Very readily broken in biological systems, it is practically absent in naturally occurring inorganic m…
Exploring van der Waals materials with high anisotropy: geometrical and optical approaches
Aleksandr S. Slavich, Georgy A. Ermolaev, Mikhail K. Tatmyshevskiy +15
The emergence of van der Waals (vdW) materials resulted in the discovery of their giant optical, mechanical, and electronic anisotropic properties, immediately enabling countless n…
Essential L-Amino Acid-Functionalized Graphene Oxide for Liquid Crystalline Phase Formation
H. Gharagulyan, Y. Melikyan, V. Hayrapetyan +3
The colloidal 2D materials based on graphene and its modifications are of great interest when it comes to forming LC phases. These LC phases allow controlling the orientational ord…
Hexagonal boron nitride nanophotonics
D. V. Grudinin, G. A. Ermolaev, D. G. Baranov +10
A global trend to miniaturization and multiwavelength performance of nanophotonic devices drives research on novel phenomena, such as bound states in the continuum and Mietronics,…
Anomalous optical response of graphene on hexagonal boron nitride substrates
Adilet Toksumakov, Georgy Ermolaev, Mikhail Tatmyshevskiy +10
Graphene/hBN heterostructures can be considered as one of the basic building blocks for the next-generation optoelectronics mostly owing to the record-high electron mobilities. How…
High-refractive index and mechanically cleavable non-van der Waals InGaS3
Adilet N. Toksumakov, Georgy A. Ermolaev, Alexander S. Slavich +12
The growing families of two-dimensional crystals derived from naturally occurring van der Waals materials offer an unprecedented platform to investigate elusive physical phenomena…
Twisted monolayer and bilayer graphene for vertical tunneling transistors
Davit A. Ghazaryan, Abhishek Misra, Evgenii E. Vdovin +5
We prepare twist-controlled resonant tunneling transistors consisting of monolayer (Gr) and Bernal bilayer (BGr) graphene electrodes separated by a thin layer of hexagonal boron ni…
Field-induced insulating states in a graphene superlattice
S. Pezzini, S. Wiedmann, A. Mishchenko +5
We report on high-field magnetotransport (B up to 35 T) on a gated superlattice based on single-layer graphene aligned on top of hexagonal boron nitride. The large-period moiré mod…
Planar and van der Waals heterostructures for vertical tunnelling single electron transistors
Gwangwoo Kim, Sung-Soo Kim, Jonghyuk Jeon +18
Despite a rich choice of two-dimensional materials, which exists these days, heterostructures, both vertical (van der Waals) and in-plane, offer an unprecedented control over the p…