Results 21 to 30 of about 188,860 (267)
Optical Interference Substrates for Nanoparticles and Two-Dimensional Materials
Nanomaterials and Nanotechnology, 2013 Interference substrates are useful in enhancing Raman and luminescence signals and in increasing the optical contrast of nanoparticles and atomically thin layers. Interference substrates played a crucial role in the discovery of the electric field effect
Wolfgang S Bacsa +2 more
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Optical Antennas for Enhanced Efficiency
Solar Energy: New Materials and Nanostructured Devices for High Efficiency, 2008 High efficiency solutions for photovoltaics requires taking advantage of IR photons energy. Possible solutions are based on up-conversion processes which have a low cross section. We will discuss different solutions to enhance the absorption.
Esteban, Ruben +2 more
openaire +2 more sources
Endoscopic Optical Enhancement Technologies in IBD [PDF]
European Medical Journal Gastroenterology, 2013 Optical enhancement technologies are emerging as promising tools to improve diagnosis and clinical management of patients with inflammatory bowel diseases (IBD).
Gian Eugenio Tontini +3 more
doaj
Optical Enhancement by Gold Nanoring-Nanodisk Plasmonic Structures for Light Sensing Applications
Al-Mustansiriyah Journal of Science, 2022 We design and numerically model a 3D nanoring-nanodisk structure and evaluate the effect of the ring and the disk radii size within the presented structure on optical enhancement.
Ahmad Aziz Darweesh +2 more
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Enhanced Raman scattering in graphene by plasmonic resonant Stokes emission
Nanophotonics, 2014 Exploiting surface plasmon polaritons to enhance interactions between graphene and light has recently attracted much interest. In particular, nonlinear optical processes in graphene can be dramatically enhanced and controlled by plasmonic nanostructures.
Ghamsari Behnood G. +3 more
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Laser ablation initiated fast discharge for spectrochemical applications [PDF]
Hemijska Industrija, 2014 The results of an experimental study of the optical emission enhancement possibilities during the single pulse laser induced breakdown spectroscopy of the aluminum alloy are presented.
Vinić Milica L., Ivković Milivoje R.
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Sensors, 2022 We present a facile approach for the determination of the electromagnetic field enhancement of nanostructured TiN electrodes. As model system, TiN with partially collapsed nanotube structure obtained from nitridation of TiO2 nanotube arrays was used ...
Ibrahim Halil Öner +4 more
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Nanophotonics, 2018 Local enhancement of electromagnetic (EM) fields near dielectric and metallic surfaces is usually associated with the existence of a confined EM wave at least in one direction. This phenomenon finds applications in enhancing optical spectroscopic signals,
Abdulhalim Ibrahim
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Derivative-free optimization for optical chirality enhancement [PDF]
EPJ Web of ConferencesWe adopt a multi-objective optimization approach to design one-dimensional photonic crystals with large optical chirality enhancements. We show that this technique allows for a large design flexibility in terms of selected materials and operational ...
Pellegrini Giovanni +5 more
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Nanomaterials, 2021 A nanoparticle’s shape and size determine its optical properties. Nanorods are nanoparticles that have double absorption bands associated to surface plasmon oscillations along their two main axes.
Juan Manuel Núñez-Leyva +6 more
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