Zobrazeno 1 - 10
of 515
pro vyhledávání: '"Krysl, P."'
Autor:
Krysl, Anastasiya, But, Dmytro B., Ikamas, Kęstutis, Holstein, Jakob, Shevchik-Shekera, Anna, Roskos, Hartmut G., Lisauskas, Alvydas
This paper presents a study on performance optimization and resonant frequency modification of terahertz detectors by the use of hyper-hemispherical silicon superstrate lenses. The detectors are patch-TeraFETs, i.e., field-effect transistors with mon
Externí odkaz:
http://arxiv.org/abs/2404.07715
Autor:
Holstein, Jakob, North, Nicholas K., Horbury, Michael D., Kondawar, Sanchit, Kundu, Imon, Salih, Mohammed, Krysl, Anastasiya, Li, Lianhe, Linfield, Edmund H., Freeman, Joshua R., Valavanis, Alexander, Lisauskas, Alvydas, Roskos, Hartmut G.
Monolithically integrated, antenna-coupled field-effect transistors (TeraFETs) are rapid and sensitive detectors for the terahertz range (0.3-10~THz) that can operate at room temperature. We conducted experimental characterizations of a single patch-
Externí odkaz:
http://arxiv.org/abs/2404.07309
We report on the modeling and experimental characterization of Si CMOS detectors of terahertz radiation based on antenna-coupled field-effect transistors (TeraFETs). The detectors are manufactured using TSMC's 65-nm technology. We apply two models --
Externí odkaz:
http://arxiv.org/abs/2404.06790
Autor:
Jiri Hammer, Michaela Kajsova, Adam Kalina, David Krysl, Petr Fabera, Martin Kudr, Petr Jezdik, Radek Janca, Pavel Krsek, Petr Marusic
Publikováno v:
Communications Biology, Vol 7, Iss 1, Pp 1-15 (2024)
Abstract Antagonistic activity of brain networks likely plays a fundamental role in how the brain optimizes its performance by efficient allocation of computational resources. A prominent example involves externally/internally oriented attention task
Externí odkaz:
https://doaj.org/article/72f438699ef54b79b6e0be39dee47942
Autor:
Krýsl, Svatopluk
We prove that the image of an elliptic operator on a smooth separable Hilbert fibre bundle on compact manifolds is closed with respect to the natural pre-Hilbert topology. We consider a tensor product of the operator, which is invariant with respect
Externí odkaz:
http://arxiv.org/abs/2208.10966
Autor:
Hudeček, Štěpán, Krýsl, Svatopluk
We introduce notions of a separated solution and of a simple symmetry that generates a differential operator on a smooth manifold. We prove that a differential operator on a two dimensional manifold has a separated solution if it has a homogeneous si
Externí odkaz:
http://arxiv.org/abs/2112.09945
Autor:
Petr Krysl, Ahmad T. Abawi
Publikováno v:
Acoustics, Vol 5, Iss 4, Pp 1016-1035 (2023)
Computing backscattering of harmonic acoustic waves from underwater elastic targets of arbitrary shape is a problem of considerable practical significance. The finite element method is commonly applied to the discretization of the target; on the othe
Externí odkaz:
https://doaj.org/article/f7d4553efb55459f813bc87abd3664f0
A recently introduced representation by a set of Wang tiles -- a generalization of the traditional Periodic Unit Cell based approach -- serves as a reduced geometrical model for materials with stochastic heterogeneous microstructure, enabling an effi
Externí odkaz:
http://arxiv.org/abs/2010.02690
Autor:
Petr Krysl, Ahmad T. Abawi
Publikováno v:
Acoustics, Vol 5, Iss 2, Pp 522-534 (2023)
Computing the backscattering of harmonic acoustic waves from underwater elastic targets of arbitrary shapes is a challenging problem of considerable practical significance. The finite element method is well suited for the discretization of the target
Externí odkaz:
https://doaj.org/article/e5046791b7a249d5bf8739746c8bf7cf
Exotic behaviour of mechanical metamaterials often relies on an internal transformation of the underlying microstructure triggered by its local instabilities, rearrangements, and rotations. Depending on the presence and magnitude of such a transforma
Externí odkaz:
http://arxiv.org/abs/1911.05223