624 citations · 1k across the 14 of their papers we have counts for
14 papers
Impact of pre-patterned structures on features of Laser Induced Periodic Surface structures
Stella Maragkaki, Panagiotis C. Lingos, George D. Tsibidis +2
The efficiency of light coupling to surface plasmon polariton (SPP) represents a very important issue in plasmonics and laser fabrication of topographies in various solids. To illu…
Ultrafast modulation in a THz graphene-based flat absorber through negative photoconductivity
Anna C. Tasolamprou, Anastasios D. Koulouklidis, Christina Daskalaki +9
We present the experimental and theoretical study of an ultrafast graphene based thin film absorption modulator for operation in the THz regime. The flat modulator is composed of a…
The Software-Defined Metasurfaces Concept and Electromagnetic Aspects
Anna C. Tasolamprou, Alexandros Pitilakis, Odysseas Tsilipakos +17
We present the concept and electromagnetic aspects of HyperSurFaces (HSFs), artificial, ultrathin structures with software controlled electromagnetic properties. The HSFs key unit…
Determination of polariton condensates' critical temperature
E. Rozas, M. D. Martín, C. Tejedor +4
We investigate the thermal robustness of traveling polariton condensates. We create remote condensates that have never been in contact, and study their interference in momentum spa…
Temperature dependence of the coherence in polariton condensates
E. Rozas, M. D. Martín, C. Tejedor +4
We present a time-resolved experimental study of the temperature effect on the coherence of traveling polariton condensates. The simultaneous detection of their emission both in re…
Intervalley scattering of excitons and trions in monolayer WSe under strong excitation
A. A. Mitioglu, L. Klopotowski, D. K. Maude +4
Monolayer transition metal dichalcogenides offer the possibility of optical control of the valley degree of freedom. In order to asses the potential of these materials in applicati…
Ignition and formation dynamics of a polariton condensate on a semiconductor microcavity pillar
C. Antón, D. Solnyshkov, G. Tosi +6
We present an experimental study on the ignition and decay of a polariton optical parametric oscillator (OPO) in a semiconductor microcavity pillar. The combination of a continuous…
Relaxation Oscillations in the Formation of a Polariton Condensate
Milena De Giorgi, Dario Ballarini, Paolo Cazzato +7
We report observation of oscillations in the dynamics of a microcavity polariton condensate formed under pulsed non resonant excitation. While oscillations in a condensate have alw…
Integration of nanoscale memristor synapses in neuromorphic computing architectures
Giacomo Indiveri, Bernabe Linares-Barranco, Robert Legenstein +2
Conventional neuro-computing architectures and artificial neural networks have often been developed with no or loose connections to neuroscience. As a consequence, they have largel…
Polariton Condensate Transistor Switch
T. Gao, P. S. Eldridge, T. C. H. Liew +5
A polariton condensate transistor switch is realized through optical excitation of a microcavity ridge with two beams. The ballistically ejected polaritons from a condensate formed…
Radio frequency signal detection by ballistic transport in Y-shaped graphene nanoribbons
George Deligeorgis, Fabio Coccetti, George Konstantinidis +1
We report on the fabrication and room temperature measurements of a high frequency electrical signal detector. The device is based on the ballistic transport in graphene to detect…
Graphene radio: Detecting radiowaves with a single atom sheet
Mircea Dragoman, Dan Neculoiu, Alina Cismaru +3
We present the experimental evidence of RF demodulation by a graphene monolayer embedded in a coplanar structure. The demodulator was tested in the frequency range from 100 MHz to…
InAs/GaAs (211)B quantum dots with negligible FSS for the generation of entangled photons
S. Germanis, A. Beveratos, G. E. Dialynas +4
Polarization-resolved single dot spectroscopy performed on (211)B InAs/GaAs quantum dots reveals that the fine structure splitting of the excitonic levels in these dots is much low…
Oriented polaritons in strongly-coupled asymmetric double quantum well microcavities
Gabriel Christmann, Alexis Askitopoulos, George Deligeorgis +4
Replacing independent single quantum wells inside a strongly-coupled semiconductor microcavity with double quantum wells produces a special type of polariton. Using asymmetric doub…