Zobrazeno 1 - 10
of 84
pro vyhledávání: '"Deligeorgis, George"'
Autor:
Maragkaki, Stella, Lingos, Panagiotis C., Tsibidis, George D., Deligeorgis, George, Stratakis, Emmanuel
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 illustrate the role of pre-patterrned surfaces and impact of laser polsari
Externí odkaz:
http://arxiv.org/abs/2111.04383
Autor:
Tasolamprou, Anna C., Koulouklidis, Anastasios D., Daskalaki, Christina, Mavidis, Charalampos P., Kenanakis, George, Deligeorgis, George, Viskadourakis, Zacharias, Kuzhir, Polina, Tzortzakis, Stelios, Economou, Eleftherios N., Kafesaki, Maria, Soukoulis, Costas M.
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 graphene sheet placed on a dielectric layer backed by a metallic back
Externí odkaz:
http://arxiv.org/abs/1908.06696
Autor:
Tasolamprou, Anna C., Pitilakis, Alexandros, Tsilipakos, Odysseas, Liaskos, Christos, Tsiolaridou, Ageliki, Liu, Fu, Wang, Xuchen, Mirmoosa, Mohammad S., Kossifos, Kypros, Georgiou, Julius, Pitsilides, Andreas, Kantartzis, Nikolaos V., Manessis6, Dionysios, Ioannidis, Sotiris, Kenanakis, George, Deligeorgis, George, Economou, Eleftherios N., Tretyakov, Sergei A., Soukoulis, Costas M., Kafesaki, Maria
We present the concept and electromagnetic aspects of HyperSurFaces (HSFs), artificial, ultrathin structures with software controlled electromagnetic properties. The HSFs key unit is the metasurface, a plane with designed subwavelength features whose
Externí odkaz:
http://arxiv.org/abs/1908.01072
Autor:
Gagaoudakis, Emmanouil, Kampitakis, Viktor, Moschogiannaki, Marilena, Sfakianou, Angeliki, Anthopoulos, Thomas, Tsetseris, Leonidas, Kiriakidis, George, Deligeorgis, George, Iacovella, Fabrice, Binas, Vasileios
Publikováno v:
In Sensors and Actuators: A. Physical 1 May 2022 338
Publikováno v:
In Applied Surface Science 15 January 2022 572
Autor:
De Giorgi, Milena, Ballarini, Dario, Cazzato, Paolo, Deligeorgis, George, Tsintzos, Simos I., Hatzopoulos, Zacharias, Savvidis, Pavlos G., Gigli, Giuseppe, Laussy, Fabrice P., Sanvitto, Daniele
Publikováno v:
Phys. Rev. Lett. 112, 113602 (2014)
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 always been attributed to Josephson mechanisms due to a chemical potentia
Externí odkaz:
http://arxiv.org/abs/1404.2057
Autor:
Indiveri, Giacomo, Linares-Barranco, Bernabe, Legenstein, Robert, Deligeorgis, George, Prodromakis, Themistoklis
Publikováno v:
Nanotechnology 24 384010, (2013), pg. 1-13
Conventional neuro-computing architectures and artificial neural networks have often been developed with no or loose connections to neuroscience. As a consequence, they have largely ignored key features of biological neural processing systems, such a
Externí odkaz:
http://arxiv.org/abs/1302.7007
Publikováno v:
Appl. Phys. Lett., vol. 101, no. 1, pp. 013502--013502--3, Jul. 2012
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 a high frequency signal. The observed response is linear in the consid
Externí odkaz:
http://arxiv.org/abs/1203.1773
Autor:
Dragoman, Mircea, Neculoiu, Dan, Cismaru, Alina, Deligeorgis, George, Konstantinidis, George, Dragoman, Daniela
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 25 GHz using amplitude modulated input signals. An input power of 0 dB
Externí odkaz:
http://arxiv.org/abs/1202.1968
Autor:
Christmann, Gabriel, Askitopoulos, Alexis, Deligeorgis, George, Hatzopoulos, Zacharias, Tsintzos, Simeon I., Savvidis, Pavlos G., Baumberg, Jeremy J.
Publikováno v:
Applied Physics Letters (2011)
Replacing independent single quantum wells inside a strongly-coupled semiconductor microcavity with double quantum wells produces a special type of polariton. Using asymmetric double quantum wells in devices processed into mesas allows the alignment
Externí odkaz:
http://arxiv.org/abs/1102.2852