41 results

Decentralized dynamic understanding of hidden relations in complex networks

Journal Article
Mocanu, D. C., Exarchakos, G., & Liotta, A. (2018)
Decentralized dynamic understanding of hidden relations in complex networks. Scientific Reports, 8(1), https://doi.org/10.1038/s41598-018-19356-4
Almost all the natural or human made systems can be understood and controlled using complex networks. This is a difficult problem due to the very large number of elements in s...

A topological insight into restricted Boltzmann machines

Journal Article
Mocanu, D. C., Mocanu, E., Nguyen, P. H., Gibescu, M., & Liotta, A. (2016)
A topological insight into restricted Boltzmann machines. Machine Learning, 104(2-3), 243-270. https://doi.org/10.1007/s10994-016-5570-z
Restricted Boltzmann Machines (RBMs) and models derived from them have been successfully used as basic building blocks in deep artificial neural networks for automatic feature...

Spectral Green's Function for SPR Meta-Structures

Journal Article
Iovine, R., La Spada, L., Tarparelli, R., & Vegni, L. (2014)
Spectral Green's Function for SPR Meta-Structures. Materials Science Forum, 792, 110-114. doi:10.4028/www.scientific.net/msf.792.110
In this paper we propose a new approach to study the electromagnetic field in Surface Plasmon Resonance (SPR) meta-structures. The geometry is a planar structure infinitely ex...

Surface wave cloaking using transformation optics

Conference Proceeding
La Spada, L., & Hao, Y. (2015)
Surface wave cloaking using transformation optics. In 2015 1st URSI Atlantic Radio Science Conference (URSI AT-RASC)doi:10.1109/ursi-at-rasc.2015.7302892
Recently, there has been an increasing interest in the study of manipulating surface waves from microwave to optical frequencies [1, 2], especially for the design of conformal...

Nanorod-based glucose sensor.

Conference Proceeding
La Spada, L., Iovine, R., Bilotti, F., & Vegni, L. (2012)
Nanorod-based glucose sensor. In Metamorphose VI: Proceedings of Metamaterials '2012: The Sixth International Congress on Advanced Electromagnetic Materials in Microwaves and Optics
In this paper, a metamaterial-based sensor consisting of an array of nanorods is proposed. An analytical model, describing the electromagnetic response of the nanorods, is pro...

Metamaterial-based sensor for hemoglobin measurements

Conference Proceeding
Spada, L. L., Iovine, R., & Vegni, L. (2013)
Metamaterial-based sensor for hemoglobin measurements. In 2012 Loughborough Antennas & Propagation Conference (LAPC)doi:10.1109/lapc.2012.6403007
The ratio Oxyhemoglobin to Deoxygenated hemoglobin is an important medical parameter for several diseases diagnostics. In this paper a metamaterial-based sensor, operating in ...

Electromagnetic modeling of ellipsoidal nanoparticles for sensing applications

Journal Article
Spada, L. L., Iovine, R., & Vegni, L. (2013)
Electromagnetic modeling of ellipsoidal nanoparticles for sensing applications. Optical Engineering, 52(5), 051205. doi:10.1117/1.oe.52.5.051205
We present a new analytical study of metallic nanoparticles, working in the infrared and visible frequency range. The structure consists of triaxial ellipsoidal resonating inc...

Metasurface-Epsilon Near Zero-based Electromagnetic Wave Absorber

Conference Proceeding
La Spada, L. (2014)
Metasurface-Epsilon Near Zero-based Electromagnetic Wave Absorber. In Proceedings of 9th International Conference on Body Area Networksdoi:10.4108/icst.bodynets.2014.257016
The purpose of this paper is to design a new electromagnetic wave absorber. It consists of a planar layered structure with an isotropic Epsilon-Near-Zero (ENZ) material and a ...

Epsilon-Near-Zero Nanoantennas

Conference Proceeding
La Spada, L. (2014)
Epsilon-Near-Zero Nanoantennas. In Proceedings of the 9th International Conference on Body Area Networksdoi:10.4108/icst.bodynets.2014.257015
In this paper the design of Epsilon Near Zero (ENZ) antennas, working in the infrared and optical regime, is presented. Two different structures are considered: the classical ...

Metamaterial resonator arrays for organic and inorganic compound sensing

Conference Proceeding
La Spada, L., Bilotti, F., & Vegni, L. (2011)
Metamaterial resonator arrays for organic and inorganic compound sensing. In Proceedings Volume 8306, Photonics, Devices, and Systems V; 83060I (2011)doi:10.1117/12.912267
In this paper, an electromagnetic metamaterial resonator operating in the terahertz frequency range is presented. By arranging the resonator in a planar array, it is possible ...