Results 131 to 140 of about 853,308 (389)

Experimental demonstration of self-collimation beaming and splitting in photonic crystals [PDF]

, 2008
I studied experimentally the beam self-collimation and splitting in two-dimensional microwave photonic crystals. Using a microwave photonic crystal fabricated from alumina rods, I present an experimental proof of principle for an earlier theoretical proposal [A. Matthews et al., Opt. Commun. 279, 313 (2007)] of a photonic crystal beam splitter based on
arxiv   +1 more source

Enhancement of the Optoelectric and Photovoltaic Responses of Al/PVP:ZnTiO3/p‐Si Structure by Graphene Nanoparticles

Advanced Photonics Research, EarlyView.
This study investigates the optoelectronic response of Al/p‐Si photodiodes with and without a (PVP:Gr‐ZnTiO3) interlayer under varying light intensities. Key parameters are analyzed, revealing that the interlayer enhances photosensitivity, optical responsivity, and specific detectivity.
Ali Barkhordari, Şemsettin Altındal, Süleyman Özçelik, Hamid Reza Mashayekhi, Mustafa Muradov, Yashar Azizian‐Kalandaragh   +5 more
wiley   +1 more source

Microwave and RF Applications for Micro-resonator based Frequency Combs

, 2015
Photonic integrated circuits that exploit nonlinear optics in order to generate and process signals all-optically have achieved performance far superior to that possible electronically - particularly with respect to speed.
Chu, Sai T., Ferrera, Marcello, Little, Brent E., Mitchell, Arnan, Morandotti, Roberto, Moss, David J., Nguyen, TG (reprint author), RMIT Univ, Schoof Elect & Comp Engn, Melbourne, Vic 3001, Australia., Nguyen, Thach G., Pasquazi, Alessia, Peccianti, Marco, Shoeiby, Mehrdad   +10 more
core   +1 more source

Kondo resonance of a microwave photon

Physical Review B, 2012
Final Version: Main text and Supplementary ...
openaire   +4 more sources

Microwave photonics shines [PDF]

Nature Photonics, 2011
The combination of microwave photonics and optics has advanced many applications in defence, wireless communications, imaging and network infrastructure. Rachel Won talks to Jianping Yao from the University of Ottawa in Canada about the importance of this growing field.
openaire   +1 more source

Design of Waveguide NbN‐Based Superconductor–Insulator–Superconductor Mixer for 650 GHz

Advanced Photonics Research, EarlyView.
This research work focuses on a waveguide NbN‐based superconductor–insulator–superconductor mixer operating at 650 GHz. The signal coupling circuit is designed using a waveguide‐microstrip coupling structure, and the return loss obtained is lower than −16 dB. For the mixing circuit, its return loss is less than −7.5 dB, and the return loss reduces with
Lianhao He, Fangting Lin, Xiaoyong He
wiley   +1 more source

A New Method of Robust Ground Moving Target Detection Under Different Backgrounds of Airborne SAR Based on Spatial Deformable Module

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Combined with the synthetic aperture radar (SAR) imaging algorithm, diverse simulation sample sets of ground moving targets are constructed to tackle the problem of insufficient measured data in the SAR ground moving target indication algorithm based on ...
He Yan, Hui Liu, Jialin Hao, Wenshuo Xu, Jingdong Zhang, Di Wu, Xudong Wang, Gong Zhang, Daiyin Zhu   +8 more
doaj   +1 more source

Concept for Continuously Tunable Output Filters for Digital Transmitter Architectures

IEEE Access, 2019
This paper presents a novel output filter approach for continuously frequency-tunable digital power amplifiers, suitable for future seamless and band-less applications in 5G, e.g. for cognitive radios (CR). The presented tunable output filter is based on
Christian Schuster, Lukas Schynol, Andreas Wentzel, Florian Huhn, Ersin Polat, Sonke Schmidt, Rolf Jakoby, Wolfgang Heinrich, Holger Maune   +8 more
doaj   +1 more source

Integrated Microwave Photonics for Wideband Signal Processing

, 2017
We describe recent progress in integrated microwave photonics in wideband signal processing applications with a focus on the key signal processing building blocks, the realization of monolithic integration, and cascaded photonic signal processing for ...
X. Yi, S. Chew, Shijie Song, L. Nguyen, R. Minasian   +4 more
semanticscholar   +1 more source

Spherical and Aspherical Lenses for Boosting the Performance of Terahertz Imaging Systems

Advanced Photonics Research, EarlyView.
This study investigates the enhancement of terahertz (THz) detection through the terajet effect using mesoscale dielectric lenses of various geometries. Spherical, aspherical, and cubic polytetrafluoroethylene lenses are evaluated at 0.15 and 0.3 THz, demonstrating significant improvements in responsivity and noise reduction.
El Hadj Abidi, Jaime Calvo‐Gallego, Alejandro Schulman, Miguel Ferrando‐Bataller, Oleg V. Minin, Igor V. Minin, Jesus E. Velázquez‐Pérez, Yahya Moubarak Meziani   +7 more
wiley   +1 more source