Zobrazeno 1 - 10
of 214
pro vyhledávání: '"Economou, Eleftherios"'
Autor:
Katsantonis, Ioannis, Tasolamprou, Anna, Economou, Eleftherios, Koschny, Thomas, Kafesaki, Maria
We demonstrate a simple, low-cost and ultracompact chiral resonant metasurface design, which, by strong local coupling to a quantum gain medium (quantum emitters), allows to implement an ultra-thin metasurface laser, capable of generating tunable cir
Externí odkaz:
http://arxiv.org/abs/2404.15763
Autor:
Katsantonis, Ioannis, Manousidaki, Maria, Koulouklidis, Anastasios D., Daskalaki, Christina, Spanos, Ioannis, Kerantzopoulos, Constantinos, Tasolamprou, Anna C., Soukoulis, Costas M., Economou, Eleftherios N., Tzortzakis, Stelios, Farsari, Maria, Kafesaki, Maria
Optical activity (polarization rotation of light) is one of the most desired features of chiral media, as it is important for many polarization related applications. However, in the THz region, chiral media with strong optical activity are not availa
Externí odkaz:
http://arxiv.org/abs/2302.08407
Autor:
Mavidis, Charalampos P., Tasolamprou, Anna C., Economou, Eleftherios N., Soukoulis, Costas M., Kafesaki, Maria
Coated and multicoated cylinder systems constitute an appealing metamaterial category, as they allow a very rich and highly tunable response, resulting from the interplay of the many different geometrical and material parameters involved. Here we der
Externí odkaz:
http://arxiv.org/abs/2302.08227
Autor:
Katsantonis, Ioannis, Droulias, Sotiris, Soukoulis, Costas M., Economou, Eleftherios N., Rakitzis, T. Peter, Kafesaki, Maria
Molecular chirality detection and enantiomer discrimination are very important issues for many areas of science and technology, prompting intensive investigations via optical methods. However, these methods are hindered by the intrinsically weak natu
Externí odkaz:
http://arxiv.org/abs/2112.03747
Autor:
Mavidis, Charalampos P., Tasolamprou, Anna C., Economou, Eleftherios N., Soukoulis, Costas M., Kafesaki, Maria
Publikováno v:
Phys. Rev. B 102, 155310 (2020)
Polaritonic materials, owing to a strong phonon-polariton resonance in the THz and far-infrared parts of the electromagnetic spectrum, offer both high-index dielectric and metallic response in this regime. This complex response makes them suitable ca
Externí odkaz:
http://arxiv.org/abs/2008.05151
Autor:
Katsantonis, Ioannis, Droulias, Sotiris, Soukoulis, Costas M., Economou, Eleftherios N., Kafesaki, Maria
The combination of gain and loss in optical systems that respect parity-time (PT)-symmetry has pointed recently to a variety of novel optical phenomena and possibilities. Many of them can be realized by combining the PT-symmetry concepts with metamat
Externí odkaz:
http://arxiv.org/abs/2004.07235
Autor:
Katsantonis, Ioannis, Droulias, Sotiris, Soukoulis, Costas M., Economou, Eleftherios N., Kafesaki, Maria
Publikováno v:
Phys. Rev. B 101, 214109 (2020)
We investigate the influence of chirality on the PT-symmetric and PT-broken phase of PT-symmetric chiral systems. Starting from the point that transverse magnetic (TM) and transverse electric (TE) waves have different exceptional points, we show that
Externí odkaz:
http://arxiv.org/abs/2003.07882
Autor:
Perrakis, George, Tasolamprou, Anna C., Kenanakis, George, Economou, Eleftherios N., Tzortzakis, Stelios, Kafesaki, Maria
We investigate and evaluate the contribution of the ultraviolet radiation spectrum on the temperature and efficiency of commercial crystalline silicon-based photovoltaics (PVs) that operate outdoors. The investigation is performed by employing a comp
Externí odkaz:
http://arxiv.org/abs/2003.06277