228 citations · 668 across the 22 of their papers we have counts for
22 papers
Precision Hamiltonian Encoding in Full-Aperture Spatial Photonic Ising Machines
P. S. Karavelas, D. Karanikolopoulos, L. Mouchliadis +11
Spatial photonic Ising machines (SPIMs) offer compact, room-temperature hardware with inherently parallel, energy-efficient, single-shot optical evaluation of the Ising Hamiltonian…
Shell-Core Structural Anisotropy in Starch Granules Probed by Polarization Third-Harmonic Generation Microscopy
Maria Kefalogianni, Leonidas Mouchliadis, Emmanuel Stratakis +1
Lately the non-linear optical third harmonic generation (THG) microscopy is starting to emerge as a laboratory standard for label-free studies in biological samples. In this study,…
Anisotropic Third Harmonic Generation in Two-Dimensional Tin Sulfide
George Miltos Maragkakis, Sotiris Psilodimitrakopoulos, Leonidas Mouchliadis +4
The in-plane anisotropic properties of two-dimensional (2D) group IV monochalcogenides provide an additional degree of freedom which can be used in future optoelectronic devices. H…
Strain distribution in WS2 monolayers detected through Polarization-resolved Second Harmonic Generation
George Kourmoulakis, Sotiris Psilodimitrakopoulos, George Miltos Maragkakis +9
Two-dimensional (2D) graphene and graphene-related materials (GRMs) show great promise for future electronic devices. Nevertheless, GRMs result distinct properties under the influe…
Nonlinear optical imaging of in-plane anisotropy in two-dimensional SnS
G. M. Maragkakis, S. Psilodimitrakopoulos, L. Mouchliadis +4
Two-dimensional (2D) tin(II) sulfide (SnS) crystals belong to a class of orthorhombic semiconducting materials that are lately attracting significant interest, given their remarkab…
Optical versus electron diffraction imaging of Twist-angle in 2D transition metal dichalcogenide bilayer superlattices
S. Psilodimitrakopoulos, A. Orekhov, L. Mouchliadis +7
Atomically thin two-dimensional (2D) materials can be vertically stacked with van der Waals bonds, which enable interlayer coupling. In the particular case of transition metal dich…
Wide field of view crystal orientation mapping of layered materials
A. Orekhov, D. Jannis, N. Gauquelin +10
Layered materials (LMs) are at the centre of an ever increasing research effort due to their potential use in a variety of applications. The presence of imperfections, such as bi-…
Probing valley population imbalance in transition metal dichalcogenides via temperature-dependent second harmonic generation imaging
Leonidas Mouchliadis, Sotiris Psilodimitrakopoulos, George Miltos Maragkakis +5
Degenerate minima in momentum space - valleys - provide an additional degree of freedom that can be used for information transport and storage. Notably, such minima naturally exist…
Modelling ultrafast non-equilibrium carrier dynamics and relaxation processes upon irradiation of hexagonal Silicon-Carbide with femtosecond laser pulses
G. D. Tsibidis, L. Mouchliadis, M. Pedio +1
We present a theoretical investigation of the yet unexplored dynamics of the produced excited carriers upon irradiation of hexagonal Silicon Carbide (6H-SiC) with femtosecond laser…
Prominent room temperature valley polarization in WS2/graphene heterostructures grown by chemical vapor deposition
Ioannis Paradisanos, Kathleen M. McCreary, Davoud Adinehloo +8
We examine different cases of heterostructures consisting of WS2 monolayers grown by chemical vapor deposition (CVD) as the optically active material. We show that the degree of va…
Twist Angle mapping in layered WS2 by Polarization-Resolved Second Harmonic Generation
Sotiris Psilodimitrakopoulos, Leonidas Mouchliadis, Ioannis Paradisanos +4
Stacked atomically thin transition metal dichalcogenides (TMDs) exhibit fundamentally new physical properties compared to those of the individual layers. The twist angle between th…
Non-thermal separation of electronic and structural orders in a persisting charge density wave
M. Porer, U. Leierseder, J. -M. Ménard +7
The simultaneous ordering of different degrees of freedom in complex materials undergoing spontaneous symmetry-breaking transitions often involves intricate couplings that have rem…
Correlating Quasi-Electron Relaxation with Quantum Femtosecond Magnetism in the Order Parameter Dynamics of Insulating Manganites
T. Li, A. Patz, P. Lingos +5
Femtosecond (fs)-resolved simultaneous measurements of charge and spin dynamics reveal the coexistence of two different quasi-particle excitations in colossal magneto-resistive (CM…
Direct and indirect excitons in semiconductor coupled quantum wells in an applied electric field
K. Sivalertporn, L. Mouchliadis, A. L. Ivanov +2
An accurate calculation of the exciton ground and excited states in AlGaAs and InGaAs coupled quantum wells (CQWs) in an external electric field is presented. An efficient and stra…
Bragg Polaritons: Strong Coupling and Amplification in an Unfolded Microcavity
A. Askitopoulos, L. Mouchliadis, I. Iorsh +5
Periodic incorporation of quantum wells inside a one--dimensional Bragg structure is shown to enhance coherent coupling of excitons to the electromagnetic Bloch waves. We demonstra…
Supplementary Material to the Comment on "Photoluminescence Ring Formation in Coupled Quantum Wells: Excitonic Versus Ambipolar Diffusion"
A. L. Ivanov, E. A. Muljarov, L. Mouchliadis +1
This is a supplementary material to our Comment arXiv:0909.4265 on M. Stern, V. Garmider, E. Segre, M. Rappaport, V. Umansky, Y. Levinson, and I. Bar-Joseph, Phys. Rev. Lett. 101,…
Kinetics of the inner ring in the exciton emission pattern in GaAs coupled quantum wells
A. T. Hammack, L. V. Butov, J. Wilkes +4
We report on the kinetics of the inner ring in the exciton emission pattern. The formation time of the inner ring following the onset of the laser excitation is found to be about 3…
Comment on "Photoluminescence ring formation in coupled quantum wells: Excitonic versus ambipolar diffusion"
A. L. Ivanov, E. A. Muljarov, L. Mouchliadis +1
This is a comment on M. Stern, V. Garmider, E. Segre, M. Rappaport, V. Umansky, Y. Levinson, and I. Bar-Joseph, Phys. Rev. Lett. 101, 257402 (2008).
Microcavity polariton-like dispersion doublet in resonant Bragg gratings
Fabio Biancalana, Leonidas Mouchliadis, Celestino Creatore +2
Periodic structures resonantly coupled to excitonic media allow the existence of extra intragap modes ('Braggoritons'), due to the coupling between Bragg photon modes and 3D bulk e…
Localization and interaction of indirect excitons in GaAs coupled quantum wells
Alexander High, Aaron Hammack, Leonid Butov +4
We introduced an elevated trap technique and exploited it for lowering the effective temperature of indirect excitons. We observed narrow photoluminescence lines which correspond t…
First-order spatial coherence of excitons in planar nanostructures: a k-filtering effect
L. Mouchliadis, A. L. Ivanov
We propose and analyze a k-filtering effect which gives rise to the drastic difference between the actual spatial coherence length of quasi-two-dimensional (quasi-2D) excitons or m…
Kinetics of indirect excitons in the optically-induced exciton trap
A. T. Hammack, L. V. Butov, L. Mouchliadis +2
We report on the kinetics of a low-temperature gas of indirect excitons in the optically-induced exciton trap. The excitons in the region of laser excitation are found to rapidly -…