Search Results - "Gerini, Giampiero"

Using the near field optical trapping effect of a dielectric metasurface to improve SERS enhancement for virus detection by Kenworthy, Cameron F., Pjotr Stoevelaar, L., Alexander, Andrew J., Gerini, Giampiero

“…In this paper, we report the effect of optical trapping on the enhancement factor for Raman spectroscopy, using a dielectric metasurface. It was found that a…”
Get full text

Phase-Gradient Meta-Dome for Increasing Grating-Lobe-Free Scan Range in Phased Arrays by Benini, Alice, Martini, Enrica, Monni, Stefania, Vigano, Maria Carolina, Silvestri, Fabrizio, Gandini, Erio, Gerini, Giampiero, Toso, Giovanni, Maci, Stefano

“…This paper presents a simple and effective way to increase the scan range of phased array antennas by using a metasurface (MTS) curved dome. The technique is…”
Get full text

Localizing nanoscale objects using nanophotonic near-field transducers by Wolterink, Tom A. W., Buijs, Robin D., Gerini, Giampiero, Koenderink, A. Femius, Verhagen, Ewold

“…We study how nanophotonic structures can be used for determining the position of a nearby nanoscale object with subwavelength accuracy. Through perturbing the…”
Get full text

Multimode Equivalent Networks for the Design and Analysis of Frequency Selective Surfaces by Monni, S., Gerini, G., Neto, A., Tijhuis, A.G.

“…A modular technique originally proposed for waveguide junctions, the multimode equivalent network approach based on the integral equation formulation (IEMEN),…”
Get full text

A Dielectric Dome Antenna With Reduced Profile and Wide Scanning Capability by Gandini, Erio, Silvestri, Fabrizio, Benini, Alice, Gerini, Giampiero, Martini, Enrica, Maci, Stefano, Vigano, Maria Carolina, Toso, Giovanni, Monni, Stefania

“…The design and experimental validation of a wide scanning dome antenna with reduced profile is presented. The antenna is based on the combination of a planar…”
Get full text

Reflector Synthesis for Wide-Scanning Focal Plane Arrays by Dubok, Aleksei, Al-Rawi, Ali, Gerini, Giampiero, Smolders, A. Bart

“…A new complex offset double-reflector configuration for a wideband focal plane array (FPA) is presented which is optimized for Ka-band applications with a scan…”
Get full text

Information advantage from polarization-multiplexed readout of nanophotonic scattering overlay sensors by Buijs, Robin D., Wolterink, Tom A. W., Gerini, Giampiero, Femius Koenderink, A., Verhagen, Ewold

“…Nanophotonic structures are powerful tools for sensing, with the goal of retrieving parameters accurately at maximum speed and minimum photon budget. As…”
Get full text

Direct and High-Throughput Fabrication of Mie-Resonant Metasurfaces via Single-Pulse Laser Interference by Berzinš, Jonas, Indrišiūnas, Simonas, van Erve, Koen, Nagarajan, Arvind, Fasold, Stefan, Steinert, Michael, Gerini, Giampiero, Gečys, Paulius, Pertsch, Thomas, Bäumer, Stefan M. B, Setzpfandt, Frank

“…High-index dielectric metasurfaces featuring Mie-type electric and magnetic resonances have been of great interest in a variety of applications such as…”
Get full text

A Broadband Plasmonic Metasurface Superabsorber at Optical Frequencies: Analytical Design Framework and Demonstration by Nagarajan, Arvind, Vivek, Kumar, Shah, Manav, Achanta, Venu Gopal, Gerini, Giampiero

“…Plasmonic metasurface based superabsorbers exhibit high absorbance. While the absorption peak can be tuned by the geometry/size of the sub‐wavelength…”
Get full text

Green's Function Based Equivalent Circuits for Connected Arrays in Transmission and in Reception by Cavallo, Daniele, Neto, Andrea, Gerini, Giampiero

“…Connected arrays constitute the only family of antenna arrays for which the spectral Green's Functions have been derived analytically. This formalism is…”
Get full text

Characterization of a Dual-Polarized Connected-Dipole Array for Ku-Band Mobile Terminals by Bolt, Roland J., Cavallo, Daniele, Gerini, Giampiero, Deurloo, Duije, Grooters, Reindert, Neto, Andrea, Toso, Giovanni

“…In this paper, we present the characterization of a Ku-band connected-dipole array for mobile Satcom application. The prototype array consists of…”
Get full text

A 3- to 5-GHz Wideband Array of Connected Dipoles With Low Cross Polarization and Wide-Scan Capability by Cavallo, D., Neto, A., Gerini, G., Micco, A., Galdi, V.

“…A wideband, wide-scan phased array of connected dipoles has been designed and fabricated. Measured results from a 77 prototype demonstrator are presented for…”
Get full text

Edge-Born Waves in Connected Arrays: A Finite[Formula Omitted]Infinite Analytical Representation by Neto, Andrea, Cavallo, Daniele, Gerini, Giampiero

“…Connected arrays constitute one of the most promising options for wideband phased arrays. Like most phased arrays, they are designed using infinite array…”
Get full text

Edge-Born Waves in Connected Arrays: A Finite x Infinite Analytical Representation by NETO, Andrea, CAVALLO, Daniele, GERINI, Giampiero

Get full text

Lattice Resonances and Local Field Enhancement in Array of Dielectric Dimers for Surface Enhanced Raman Spectroscopy by Černigoj, Jernej, Silvestri, Fabrizio, Stoevelaar, L. Pjotr, Berzinš, Jonas, Gerini, Giampiero

“…In this paper, we propose the use of high refractive index dimers for the realization of a surface enhanced Raman spectroscopy substrate, with an average…”
Get full text

Calibration-based overlay sensing with minimal-footprint targets by Wolterink, Tom A. W., Buijs, Robin D., Gerini, Giampiero, Verhagen, Ewold, Koenderink, A. Femius

“…Overlay measurements are a critical part of modern semiconductor fabrication, but overlay targets have not scaled down in the way devices have. In this work,…”
Get full text

Optical Generation/Detection of Broadband Microwave Orbital Angular Momentum Modes by Huang, Jianou, Cao, Zizheng, Zhao, Xinran, Zhang, Xuebing, Liu, Yu, Xiang, Yuanjiang, Gerini, Giampiero, Koonen, A. M. J.

“…In this article, a novel electrically controlled optical broadband phase shifter (ECO-BPS) is proposed and experimentally investigated for broadband microwave…”
Get full text

Reflection confocal nanoscopy using a super-oscillatory lens by Nagarajan, Arvind, Stoevelaar, L Pjotr, Silvestri, Fabrizio, Siemons, Marijn, Achanta, Venu Gopal, Bäumer, Stefan M B, Gerini, Giampiero

“…A superoscillatory lens (SOL) is known to produce a sub-diffraction hotspot that is useful for high-resolution imaging. SOLs have not yet been directly used in…”
Get full text

Nanostructure-modulated planar high spectral resolution spectro-polarimeter by Pjotr Stoevelaar, L., Berzinš, Jonas, Silvestri, Fabrizio, Fasold, Stefan, Zangeneh Kamali, Khosro, Knopf, Heiko, Eilenberger, Falk, Setzpfandt, Frank, Pertsch, Thomas, Bäumer, Stefan M. B., Gerini, Giampiero

“…We present a planar spectro-polarimeter based on Fabry-Pérot cavities with embedded polarization-sensitive high-index nanostructures. A 7 µm-thick…”
Get full text

Programming Metasurface Near‐Fields for Nano‐Optical Sensing by Buijs, Robin D., Wolterink, Tom A.W., Gerini, Giampiero, Verhagen, Ewold, Koenderink, A. Femius

“…Control of optical fields at the nanoscale holds the promise of fast, efficient imaging methods, but is elusive due to the diffraction limit. This paper…”
Get full text