Zobrazeno 1 - 10
of 1 364
pro vyhledávání: '"A. Vasanelli"'
Autor:
T. Bonazzi, H. Dely, P. Didier, D. Gacemi, B. Fix, M. Beck, J. Faist, A. Harouri, I. Sagnes, F. Grillot, A. Vasanelli, C. Sirtori
Publikováno v:
APL Photonics, Vol 9, Iss 11, Pp 110801-110801-12 (2024)
Free-space optical communications in the mid-infrared transparency windows (4–5 and 8–14 μm wavelength regions) is emerging as a viable solution for high bitrate data transmission. Unipolar quantum optoelectronics is the technology of choice for
Externí odkaz:
https://doaj.org/article/39fb4fa4a08a4cb7a1e8010dfb2c66be
Autor:
B. Chomet, T. Gabbrielli, D. Gacemi, F. Cappelli, L. Consolino, P. De Natale, F. Kapsalidis, A. Vasanelli, Y. Todorov, J. Faist, C. Sirtori
Publikováno v:
APL Photonics, Vol 8, Iss 10, Pp 106106-106106-7 (2023)
In quantum cascade laser frequency combs, the intensity distribution of the optical spectrum can be split into two well-separated lobes of longitudinal modes that, even when far apart, have a common phase relation and preserve equal frequency separat
Externí odkaz:
https://doaj.org/article/9eae1286b9a94f33885d72dba7dd5143
The optical response of a matter excitation embedded in nanophotonic devices is commonly described by the Drude-Lorentz model. Here, we demonstrate that this widely used approach fails in the case where quantum-confined plasmons of a two-dimensional
Externí odkaz:
http://arxiv.org/abs/2301.08935
Autor:
Dely, Hamza, Bonazzi, Thomas, Spitz, Olivier, Rodriguez, Etienne, Gacemi, Djamal, Todorov, Yanko, Pantzas, Konstantinos, Beaudoin, Grégoire, Sagnes, Isabelle, Li, Lianhe, Davies, Alexander, Linfield, Edmund, Grillot, Frédéric, Vasanelli, Angela, Sirtori, Carlo
The realization of high-frequency unipolar quantum optoelectronic devices enables the demonstration of high bitrate free space data transmission in the second atmospheric window. Data-bits are written onto the laser emission using a large bandwidth a
Externí odkaz:
http://arxiv.org/abs/2110.06572
Autor:
Vasanelli, Emilia1 (AUTHOR) emilia.vasanelli@cnr.it, Calò, Silvia2 (AUTHOR) silvia.calo@unisalento.it, Cascardi, Alessio3 (AUTHOR) alessio.cascardi@unical.it, Aiello, Maria Antonietta2 (AUTHOR) antonietta.aiello@unisalento.it
Publikováno v:
Materials (1996-1944). Apr2024, Vol. 17 Issue 8, p1798. 13p.
Autor:
Jeannin, Mathieu, Bonazzi, Thomas, Gacemi, Djamal, Vasanelli, Angela, Suffit, Stéphan, Li, Lianhe, Davies, Alexander Giles, Linfield, Edmund, Sirtori, Carlo, Todorov, Yanko
Publikováno v:
Applied Physics Letters 117 (2020) 251102
We demonstrate a high temperature performance quantum detector of Terahertz (THz) radiation based on three-dimensional metamaterial. The metamaterial unit cell consists of an inductor-capacitor (LC) resonator laterally coupled with antenna elements.
Externí odkaz:
http://arxiv.org/abs/2012.11681
Autor:
Vasanelli, Angela, Todorov, Yanko, Dailly, Baptiste, Cosme, Sébastien, Gacemi, Djamal, Haky, Andrew, Sagnes, Isabelle, Sirtori, Carlo
Plasmons in heavily doped semiconductor layers are optically active excitations with sharp resonances in the 5-15 um wavelength region set by the doping level and the effective mass. Here we demonstrate that volume plasmons can form in doped layers o
Externí odkaz:
http://arxiv.org/abs/2007.12403
Autor:
Bigioli, Azzurra, Armaroli, Giovanni, Vasanelli, Angela, Gacemi, Djamal, Todorov, Yanko, Palaferri, Daniele, Li, Lianhe, Davies, Alexander Giles, Linfield, Edmund, Sirtori, Carlo
Quantum cascade detectors (QCD) are unipolar infrared devices where the transport of the photo excited carriers takes place through confined electronic states, without an applied bias. In this photovoltaic mode, the detector's noise is not dominated
Externí odkaz:
http://arxiv.org/abs/2003.10752
Autor:
Vasanelli, Angela, Huppert, Simon, Haky, Andrew, Laurent, Thibault, Todorov, Yanko, Sirtori, Carlo
Publikováno v:
Phys. Rev. Lett. 125, 187401 (2020)
We investigate the frontier between classical and quantum plasmonics in highly doped semiconductor layers. The choice of a semiconductor platform instead of metals for our study permits an accurate description of the quantum nature of the electrons c
Externí odkaz:
http://arxiv.org/abs/2003.01543
Autor:
Jeannin, Mathieu, Gacemi, Djamal, Vasanelli, Angela, Li, Lianhe, Davies, Alexander Giles, Linfield, Edmund, Biasiol, Giorgio, Sirtori, Carlo, Todorov, Yanko
We provide an analysis of the electromagnetic modes of three-dimensional metamaterial resonators in the THz frequency range. The fundamental resonance of the structures is fully described by an analytical circuit model, which not only reproduces the
Externí odkaz:
http://arxiv.org/abs/2002.09746