Zobrazeno 1 - 10
of 52
pro vyhledávání: '"Mirmoosa, Mohammad Sajjad"'
Autor:
Hanhisalo, Martti, Mirmoosa, Mohammad Sajjad, Setälä, Tero, Rudnicki, Łukasz, Norrman, Andreas
Light is known to exhibit quantum uncertainty in terms of its amplitude, phase, and polarization. However, quantum uncertainty related to coherence, which is also a fundamental physical property of light, has not been considered to date. Here, we for
Externí odkaz:
http://arxiv.org/abs/2411.13106
In this work, we theoretically study temporal interfaces between media with strong spatial dispersion and dielectrics. In particular, we consider a temporal discontinuity that transforms a wire medium sample, a metamaterial with resonant spatial disp
Externí odkaz:
http://arxiv.org/abs/2411.12075
Temporal modulation unlocks possibilities to dynamically control and modify the response of electromagnetic systems. Employing explicit dependencies of circuit or surface parameters on time enables the engineering of systems with conventionally unach
Externí odkaz:
http://arxiv.org/abs/2302.14657
Autor:
Wang, Xuchen, Mirmoosa, Mohammad Sajjad, Asadchy, Viktar S., Rockstuhl, Carsten, Fan, Shanhui, Tretyakov, Sergei A.
Publikováno v:
Vol 9, Issue 14, pages 1-7, 2023
Photonic time crystals are artificial materials whose electromagnetic properties are uniform in space but periodically vary in time. The synthesis of such materials and experimental observation of their physics remain very challenging due to the stri
Externí odkaz:
http://arxiv.org/abs/2208.07231
In this paper, we investigate the scattering of surface waves on reactive impedance boundaries when the surface impedance undergoes a sudden change in time. We report three exotic wave phenomena. First, it is shown that by switching the value of the
Externí odkaz:
http://arxiv.org/abs/2208.02047
Autor:
Pitilakis, Alexandros, Tsilipakos, Odysseas, Liu, Fu, Kossifos, Kypros M., Tasolamprou, Anna C., Kwon, Do-Hoon, Mirmoosa, Mohammad Sajjad, Manessis, Dionysios, Kantartzis, Nikolaos V., Liaskos, Christos, Antoniades, Marco A., Georgiou, Julius, Soukoulis, Costas M., Kafesaki, Maria, Tretyakov, Sergei A.
Publikováno v:
IEEE Trans. Antennas Propag., vol. 69, no. 3, pp. 1440-1454, March 2021
In this paper we present the theoretical considerations and the design evolution of a proof-of-concept reconfigurable metasurface, primarily used as a tunable microwave absorber, but also as a wavefront manipulation and polarization conversion device
Externí odkaz:
http://arxiv.org/abs/2003.08654
Autor:
Wang, Xuchen, Ptitcyn, Grigorii, Díaz-Rubio, Ana, Asadchy, Viktar S., Mirmoosa, Mohammad Sajjad, Fan, Shanhui, Tretyakov, Sergei A.
Publikováno v:
Phys. Rev. Lett. 125, 266102 (2020)
Physical systems with material properties modulated in time provide versatile routes for designing magnetless nonreciprocal devices. Traditionally, nonreciprocity in such systems is achieved exploiting both temporal and spatial modulations, which ine
Externí odkaz:
http://arxiv.org/abs/2001.02213
Autor:
Tasolamprou, Anna C., Pitilakis, Alexandros, Abadal, Sergi, Tsilipakos, Odysseas, Timoneda, Xavier, Taghvaee, Hamidreza, Mirmoosa, Mohammad Sajjad, Liu, Fu, Liaskos, Christos, Tsioliaridou, Ageliki, Ioannidis, Sotiris, Kantartzis, Nikolaos V., Manessis, Dionysios, Georgiou, Julius, Cabellos-Aparicio, Albert, Alarcon, Eduard, Pitsillides, Andreas, Akyildiz, Ian, Tretyakov, Sergei A., Economou, Eleftherios N., Kafesaki, Maria, Soukoulis, Costas M.
Software-defined metasurfaces are electromagnetically ultra-thin, artificial components that can provide engineered and externally controllable functionalities. The control over these functionalities is enabled by the metasurface tunability, which is
Externí odkaz:
http://arxiv.org/abs/1907.02395
Autor:
Liu, Fu, Tsilipakos, Odysseas, Wang, Xuchen, Pitilakis, Alexandros, Tasolamprou, Anna C., Mirmoosa, Mohammad Sajjad, Kwon, Do-Hoon, Kossifos, Kypros, Georgiou, Julius, Kafesaki, Maria, Soukoulis, Costas M., Tretyakov, Sergei A.
Publikováno v:
12th International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials), Espoo, Finland, 2018, pp. 260-262
We thoroughly investigate the electromagnetic response of intelligent functional metasurfaces. We study two distinct designs operating at different frequency regimes, namely, a switch-fabric-based design for GHz frequencies and a graphene-based appro
Externí odkaz:
http://arxiv.org/abs/1904.01487
Autor:
Tsilipakos, Odysseas, Liu, Fu, Pitilakis, Alexandros, Tasolamprou, Anna C., Kwon, Do-Hoon, Mirmoosa, Mohammad Sajjad, Kantartzis, Nikolaos V., Economou, Eleftherios N., Kafesaki, Maria, Soukoulis, Costas M., Tretyakov, Sergei A.
Publikováno v:
12th International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials), Espoo, Finland, 2018, pp. 392-394
We demonstrate tunable perfect anomalous reflection with metasurfaces incorporating lumped elements. The tunable capacitance of each element provides continuous control over the local surface reactance, allowing for controlling the evanescent field d
Externí odkaz:
http://arxiv.org/abs/1904.00645