Zobrazeno 1 - 10
of 410
pro vyhledávání: '"Scalari, Giacomo"'
Autor:
Marzban, Bahareh, Miller, Lucius, Dikopoltsev, Alexander, Bertrand, Mathieu, Scalari, Giacomo, Faist, Jérôme
We demonstrate a quantum walk comb in synthetic frequency space formed by externally modulating a semiconductor optical amplifier operating in the telecommunication wavelength range in a unidirectional ring cavity. The ultrafast gain saturation dynam
Externí odkaz:
http://arxiv.org/abs/2411.08280
Autor:
Enkner, Josefine, Graziotto, Lorenzo, Boriçi, Dalin, Appugliese, Felice, Reichl, Christian, Scalari, Giacomo, Regnault, Nicolas, Wegscheider, Werner, Ciuti, Cristiano, Faist, Jérôme
The magnetotransport of a high-mobility two-dimensional electron gas coupled to a hovering split-ring resonator with controllable distance is studied in the quantum Hall regime. The measurements reveal an enhancement by more than a factor 2 of the qu
Externí odkaz:
http://arxiv.org/abs/2405.18362
Autor:
Dikopoltsev, Alexander, Heckelmann, Ina, Bertrand, Mathieu, Beck, Mattias, Scalari, Giacomo, Zilberberg, Oded, Faist, Jerome
Photonic emulators have facilitated the investigation of numerous solid-state phenomena and have contributed to the development of optical devices inspired by quantum mechanics. Although current photonic emulators are constrained to bosonic behavior
Externí odkaz:
http://arxiv.org/abs/2405.04774
Autor:
Cargioli, Alessio, Piciocchi, Diego, Bertrand, Mathieu, Maulini, Richard, Gresch, Tobias, Muller, Antonine, Scalari, Giacomo, Faist, Jerome
In this work, we demonstrate that in a regime of strong modulation, by generating pulses of the length of the order of a few cavity lifetimes (hundreds of ps), a broadband quantum cascade laser can be driven to lase on a bandwidth (250cm-1) limited b
Externí odkaz:
http://arxiv.org/abs/2311.13496
Autor:
Agarwal, Hitesh, Nowakowski, Krystian, Forrer, Andres, Principi, Alessandro, Bertini, Riccardo, Batlle-Porro, Sergi, Reserbat-Plantey, Antoine, Prasad, Parmeshwar, Vistoli, Lorenzo, Watanabe, Kenji, Taniguchi, Takashi, Bachtold, Adrian, Scalari, Giacomo, Kumar, Roshan Krishna, Koppens, Frank H. L.
Publikováno v:
Nature Photonics 2023
The requirements for broadband photodetection are becoming exceedingly demanding in hyperspectral imaging. Whilst intrinsic photoconductor arrays based on mercury cadmium telluride represent the most sensitive and suitable technology, their optical s
Externí odkaz:
http://arxiv.org/abs/2309.01555
Autor:
Heckelmann, Ina, Bertrand, Mathieu, Dikopoltsev, Alexander, Beck, Mattias, Scalari, Giacomo, Faist, Jérôme
Publikováno v:
Science 382 (2023)
Synthetic lattices in photonics enable the exploration of light states in new dimensions, transcending phenomena common only to physical space. We propose and demonstrate a Quantum Walk Laser in synthetic frequency space formed by externally modulati
Externí odkaz:
http://arxiv.org/abs/2309.00446
Autor:
Andberger, Johan, Graziotto, Lorenzo, Sacchi, Luca, Beck, Mattias, Scalari, Giacomo, Faist, Jérôme
We demonstrate terahertz chiral metamaterial cavities that break time-reversal symmetry by coupling the degenerate linearly polarized modes of two orthogonal sets of nano-antenna arrays using the inter-Landau level transition of a two-dimensional ele
Externí odkaz:
http://arxiv.org/abs/2308.03195
Autor:
Senica, Urban, Gloor, Sebastian, Micheletti, Paolo, Stark, David, Beck, Mattias, Faist, Jérôme, Scalari, Giacomo
Publikováno v:
APL Photonics 8, 096101 (2023)
THz quantum cascade lasers (QCLs) based on double metal waveguides feature broadband and high-temperature devices for use in spectroscopy and sensing. However, their extreme field confinement produces poor output coupling efficiencies and divergent f
Externí odkaz:
http://arxiv.org/abs/2306.10360
Autor:
Senica, Urban, Dikopoltsev, Alexander, Forrer, Andres, Cibella, Sara, Torrioli, Guido, Beck, Mattias, Faist, Jérôme, Scalari, Giacomo
Publikováno v:
Laser Photonics Rev. 2023, 2300472
Frequency-modulated (FM) combs feature flat intensity spectra with a linear frequency chirp, useful for metrology and sensing applications. Generating FM combs in semiconductor lasers generally requires a fast saturable gain, usually limited by the i
Externí odkaz:
http://arxiv.org/abs/2305.01483
Autor:
Rajabali, Shima, Enkner, Josefine, Cortese, Erika, Beck, Mattias, De Liberato, Simone, Faist, Jérôme, Scalari, Giacomo
Publikováno v:
Optical Materials Express, Vol. 13, Issue 10, pp. 2944-2952 (2023)
It was recently demonstrated that, in deep subwavelength gap resonators coupled to two-dimensional electron gases, coupling to propagating plasmons can lead to energy leakage and prevent the formation of polaritonic resonances. This process, akin to
Externí odkaz:
http://arxiv.org/abs/2212.13482