Zobrazeno 1 - 10
of 3 839
pro vyhledávání: '"A. Vasanelli"'
Autor:
Hamza Dely, Mahdieh Joharifar, Laureline Durupt, Armands Ostrovskis, Richard Schatz, Thomas Bonazzi, Gregory Maisons, Djamal Gacemi, Toms Salgals, Lu Zhang, Sandis Spolitis, Yan-Ting Sun, Vjačeslavs Bobrovs, Xianbin Yu, Isabelle Sagnes, Konstantinos Pantzas, Angela Vasanelli, Oskars Ozolins, Xiaodan Pang, Carlo Sirtori
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-11 (2024)
Abstract The large mid-infrared (MIR) spectral region, ranging from 2.5 µm to 25 µm, has remained under-exploited in the electromagnetic spectrum, primarily due to the absence of viable transceiver technologies. Notably, the 8–14 µm long-wave in
Externí odkaz:
https://doaj.org/article/d52a725a66d74d0fbd0be6ab17330be2
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:
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:
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:
Haky Andrew, Vasanelli Angela, Pantzas Konstantinos, Todorov Yanko, Beaudoin Grégoire, Patriarche Gilles, Sagnes Isabelle, Sirtori Carlo
Publikováno v:
Nanophotonics, Vol 13, Iss 10, Pp 1851-1857 (2024)
The volume plasmon modes of a confined electron gas are engineered in a step-like semiconductor potential, which induces the formation of adjacent regions of different charge density. Each region supports spatially localized collective modes. Adjacen
Externí odkaz:
https://doaj.org/article/dd28191b62bf4316933acc582b532ea9
Autor:
Saemian Mohammadreza, Del Balzo Livia, Gacemi Djamal, Todorov Yanko, Rodriguez Etienne, Lopez Olivier, Darquié Benoit, Li Lianhe, Davies Alexander Giles, Linfield Edmund, Vasanelli Angela, Sirtori Carlo
Publikováno v:
Nanophotonics, Vol 13, Iss 10, Pp 1765-1772 (2024)
We report room temperature heterodyne detection of a quantum cascade laser beaten with a local oscillator on a unipolar quantum photodetector in two different atmospheric windows, at 4.8 µm and 9 µm. A noise equivalent power of few pW is measured b
Externí odkaz:
https://doaj.org/article/bc2a7b94eb0c459cadd9c112d83f8d57
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:
Francesco Pisani, Djamal Gacemi, Angela Vasanelli, Lianhe Li, Alexander Giles Davies, Edmund Linfield, Carlo Sirtori, Yanko Todorov
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-8 (2023)
Abstract In the majority of optoelectronic devices, emission and absorption of light are considered as perturbative phenomena. Recently, a regime of highly non-perturbative interaction, ultra-strong light-matter coupling, has attracted considerable a
Externí odkaz:
https://doaj.org/article/ffa7dd48ffc645de85a8862acbba06a3
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