Research data for 'All-optical pattern recognition and image processing on a metamaterial beam splitter'

Research data for &#39;All-optical pattern recognition and image processing on a metamaterial beam splitter&#39;</span

Understanding the Functional Properties of Neonatal Dendritic Cells: A Doorway to Enhance Vaccine Effectiveness?

Increased susceptibility to infectious diseases is a hallmark of the neonatal period of life that is generally attributed to a relative immaturity of the immune system. Dendritic cells (DCs) are innate immune sentinels with vital roles in the initiation and orchestration of immune responses, thus, constituting a promising target for promoting neonatal immunity. However, as is the case for other immune cells, neonatal DCs have been suggested to be functionally immature compared to their adult counterparts. Here we review some of the unique aspects of neonatal DCs that shape immune responses in early life and speculate whether the functional properties of neonatal DCs could be exploited or manipulated to promote more effective vaccination in early life

Interpreting Between Greek Sign Language and Spoken Greek at the Aristotle University of Thessaloniki

This paper presents the first project on the formation of Sign Language Interpreters in Greek Universities. At the Aristotle University of Thessaloniki, the training of sign language interpreters is an experimental project organized by the Social Policy Committee and is carried out in collaboration with the School of English Studies and the Postgraduate Program in Translation and Interpretation Studies. This project has been initiated because of the realization that deaf students represent a linguistic minority in our University. In universities, the growing number of deaf students increases the demand for community and conference interpreting between the Greek sign language and the Greek — general or special — spoken language.Notre projet pédagogique a pour but de renforcer l’appui continuel à la professionalisation de la communauté des interprètes de langue des signes à l’Université Aristote par l’organisation de cours de durée limitée sur l’interprétation de la langue des signes. La préparation des interprètes de la langue des signes est un projet expérimental patronné par le Social Policy Committee et réalisé en collaboration avec le Département de langue et littérature anglaises et le programme des études postuniversitaires de traduction et d’interprétation. Ce programme expérimental a été créé pour répondre aux besoins des étudiants sourds de l’université

Targeted gene expression study of Salmonella enterica during biofilm formation on rocket leaves

In the present study, the ability of Salmonella Typhimurium to form biofilm community on rocket leaves and rocket extract at 10 C and 20 C was investigated. This goal was achieved with the study of expression of genes associated with biofilm formation and other functional roles. The obtained results showed that Salmonella growth was inhibited when cultured in rocket extract (liquid and solid state) and when grew directly to rocket leaves. The observed inhibition might be attributed to nutrient starvation to the specific growth media because of plant leaves's variability, cell physiology and antimicrobial compounds of rocket. In addition, gene expression study using Real-Time PCR showed that biofilm was formatted on solid media, while the entrance and adhesion of the microorganism within the plant held more strongly through the stomata of the plant leaves. Furthermore, genes associated with managing stress situations were overexpressed at 20 C. From these results, it is indicated that further studies are needed to better determine the survival and/or growth of the pathogen as “real” biofilm cells on plants. In addition, the study on development and gene expression of biofilm cells is necessary in order to eliminate the specific pathogen and reduce the food-borne diseases it causes

All-optical image recognition using metamaterials

Coherent interaction of waves on a thin absorbing film allows performance of ultrafast, low energy logical functions with two-dimensional images, adaptive filtering and pattern recognition that we demonstrate with a plasmonic metamaterial absorber

Two-dimensional control of light with light on metasurfaces

The ability to control the wavefront of light is fundamental to focusing and redistribution of light, enabling many applications from imaging to spectroscopy. Wave interaction on highly nonlinear photorefractive materials is essentially the only established technology allowing the dynamic control of the wavefront of a light beam with another beam of light, but it is slow and requires large optical power. Here we report a proof-of-principle demonstration of a new technology for two-dimensional control of light with light based on the coherent interaction of optical beams on highly absorbing plasmonic metasurfaces. We illustrate this by performing two-dimensional all-optical logical operations (AND, XOR, OR) and image processing. Our approach offers diffraction-limited resolution, potentially at arbitrarily low intensity levels and with 100 THz bandwidth, thus promising new applications in space division multiplexing, adaptive optics, image correction, processing and recognition, 2D binary optical data processing, tunable lenses and reconfigurable optical devices

Metasystems for all-optical recognition and processing of images and data

All-optical image recognition and data processing is accomplished by engaging the effectively nonlinear coherent wave interaction on a thin absorbing metasurface. This approach relies on coherent perfect absorption and perfect transmission of matching image features and it is compatible with single-photon intensities and THz frame rates

All-optical multichannel logic based on coherent perfect absorption in a plasmonic metamaterial

The exponential growth of telecommunications bandwidth will require next generation optical networks, where multiple spatial information channels will be transmitted in parallel. To realise the full potential of parallel optical data channels, fast and scalable multichannel solutions for processing of optical data are of paramount importance. Established solutions based on the nonlinear wave interaction in photorefractive materials are slow. Here we experimentally demonstrate all-optical logical operations between pairs of simulated spatially-multiplexed information channels using the coherent interaction of light with light on a plasmonic metamaterial. The approach is suitable for fiber implementation and - in principle - operates with diffraction-limited spatial resolution, 100 THz bandwidth and arbitrarily low intensities, thus promising ultrafast, low-power solutions for all-optical parallel data processing.<br/

All-optical multichannel logic based on coherent perfect absorption in a plasmonic metamaterial

The exponential growth of telecommunications bandwidth will require next generation optical networks, where multiple spatial information channels will be transmitted in parallel. To realise the full potential of parallel optical data channels, fast and scalable multichannel solutions for processing of optical data are of paramount importance. Established solutions based on the nonlinear wave interaction in photorefractive materials are slow. Here we experimentally demonstrate all-optical logical operations between pairs of simulated spatially multiplexed information channels using the coherent interaction of light with light on a plasmonic metamaterial. The approach is suitable for fiber implementation and—in principle—operates with diffraction-limited spatial resolution, 100 THz bandwidth, and arbitrarily low intensities, thus promising ultrafast, low-power solutions for all-optical parallel data processing

Research data: All-optical multichannel logic based on coherent perfect absorption in a plasmonic metamaterial

Research data for Papaioannou, Maria, Plum, Eric, Valente, Joao, Rogers, Edward and Zheludev, Nikolay (2016) All-optical multichannel logic based on coherent perfect absorption in a plasmonic metamaterial. APL Photonics, 1, 090801. This research data description should be read and understood in the context of the corresponding manuscript. The figure numbers correspond to the figure numbers of the manuscript.</span