Zobrazeno 1 - 10
of 217
pro vyhledávání: '"Todorov, Yanko"'
Autor:
Białek, Marcin, Todorov, Yanko, Stelmaszczyk, Kamil, Szwagierczak, Dorota, Synkiewicz-Musialska, Beata, Kulawik, Jan, Palka, Norbert, Potemski, Marek, Knap, Wojciech
The interaction between light and matter in condensed matter excitations and electromagnetic resonators serves as a rich playground for fundamental research and lies at the core of photonic and quantum technologies. Herein, we present comprehensive e
Externí odkaz:
http://arxiv.org/abs/2407.13305
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
Publikováno v:
In Journal of Power Sources 1 January 2025 625
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
Publikováno v:
Nanophotonics, Vol 13, Iss 10, Pp 1681-1691 (2024)
Over the past few decades, THz technology has made considerable progress, evidenced by the performance of current THz sources and detectors, as well as the emergence of several THz applications. However, in the realm of quantum technologies, the THz
Externí odkaz:
https://doaj.org/article/f0ffc04a11534417a1a03d95207a5b36
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:
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