Zobrazeno 1 - 10
of 180
pro vyhledávání: '"Gómez Díaz, J."'
We demonstrate that Cherenkov radiation can be manipulated in terms of operation frequency, bandwidth, and efficiency by simultaneously controlling the properties of drifting electrons and the photonic states supported by their surrounding media. We
Externí odkaz:
http://arxiv.org/abs/2211.13747
Autor:
Sabbaghi, Mohsen, Stauber, Tobias, Lee, Hyun-Woo, Gomez-Diaz, J. Sebastian, Hanson, George W.
In this work, we study the in-plane optical phonon modes of current-carrying single-layer graphene whose coupling to the $\pi$ electron gas is strong. Such modes are expected to undergo a frequency shift compared to the non-current-carrying state due
Externí odkaz:
http://arxiv.org/abs/2205.00636
Autor:
Gulseren, Melisa Ekin, Segovia-Fernandez, Jeronimo, Chang, Yi, Wang, Xuetian, Gomez-Diaz, J. Sebastian
Publikováno v:
In Ultrasonics January 2025 145
Autor:
Paul, N. K., Gomez-Diaz, J. S.
We investigate lateral recoil forces exerted on nanoparticles located near plasmonic platforms with in-plane nonreciprocal response. To this purpose, we first develop a comprehensive theoretical framework based on the Lorentz force within the Rayleig
Externí odkaz:
http://arxiv.org/abs/2203.08955
Publikováno v:
Phys. Rev. Applied 15, 014018 (2021)
We propose the optical trapping of Rayleigh particles using tailored anisotropic and hyperbolic metasurfaces illuminated with a linearly polarized Gaussian beam. This platform permits to engineer optical traps at the beam axis with a response governe
Externí odkaz:
http://arxiv.org/abs/2008.00353
Publikováno v:
Phys. Rev. Applied 12, 054008, 2019
A phased-array antenna is a device that generates radiation patterns whose shape and direction can be electronically controlled by tailoring the amplitude and phase of the signals that feed each element of the array. These devices provide identical r
Externí odkaz:
http://arxiv.org/abs/1911.02059
This paper proposes a novel and compact nonreciprocal filtering antenna based on temporal modulation. The device is composed of a third order filtering section integrated into a Yagi-Uda planar printed antenna. Strong nonreciprocity in transmission a
Externí odkaz:
http://arxiv.org/abs/1906.06418
Autor:
Correas-Serrano, D., Gomez-Diaz, J. S.
Publikováno v:
Phys. Rev. B 100, 081410 (2019)
We explore the unusual non-reciprocal and diffraction-less properties of surface plasmon polaritons propagating in drift-biased graphene-based metasurfaces. We show that applying a drift-current on a graphene sheet leads to extremely asymmetric in-pl
Externí odkaz:
http://arxiv.org/abs/1905.10699
This paper addresses the analysis and design of non-reciprocal filters based on time modulated resonators. We analytically show that time modulating a resonator leads to a set of harmonic resonators composed of the unmodulated lumped elements plus a
Externí odkaz:
http://arxiv.org/abs/1905.08340
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